Why Do Cats Knock Things Over?

Why Do Cats Knock Things Over? Behaviour Explained and Training Redirection

Key Takeaways

  • Instinctive behaviour: Cats often knock things over because of their hunting instincts, curiosity, or to test their environment.
  • Attention-seeking: Many cats learn that knocking objects gets their human’s attention, even if it’s negative.
  • Boredom-driven: A lack of stimulation or enrichment can cause cats to create their own “fun” by pushing items around.
  • Age matters: Kittens are more playful and exploratory, while older cats may knock things over to express stress or frustration.
  • Prevention is possible: With the right training, enrichment, and environmental adjustments, this behaviour can be reduced or redirected.
  • Australian context: Pet owners in Australia can adapt practical solutions—like enrichment toys, secure shelving, and safe play areas—to manage the behaviour effectively.
  • Professional help: If the behaviour escalates or seems linked to anxiety or illness, consulting a vet or behaviourist is important.

Introduction

If you share your home with a cat, chances are you’ve witnessed this scene before: a glass of water left on the bedside table mysteriously tumbles to the floor, a pen on your desk is swatted across the room, or perhaps a fragile ornament has met an unfortunate end. Many cat owners laugh at these antics, while others find themselves frustrated or even worried about the behaviour. But behind the humour lies an important question: why do cats knock things over?

This quirky behaviour isn’t just a random act of destruction. It’s deeply rooted in feline instincts, psychology, and social interaction. Cats are intelligent, curious, and highly attuned to their environments. What may appear to us as mischief or defiance often has logical explanations from a cat’s perspective. Understanding these underlying motivations is the first step to managing the behaviour effectively and compassionately.

For Australian pet owners, this issue takes on practical significance. Our homes, whether they’re suburban houses, inner-city apartments, or regional properties, often contain plenty of tempting objects within a cat’s reach. And with many Aussie cats kept indoors for safety and to protect native wildlife, indoor enrichment becomes critical. Knocking things over can sometimes be a sign that a cat’s needs aren’t being fully met.

In this article, we’ll explore the science behind why cats knock things over, what the behaviour means in different contexts, and how to redirect it through training and enrichment. Along the way, we’ll include expert insights, Australian-specific recommendations, and practical strategies that help balance your cat’s natural instincts with the safety of your belongings.


The Science Behind Cats Knocking Things Over

Cats are far from random in their actions. While it may seem like your feline companion takes delight in chaos, the behaviour of knocking things over is usually driven by specific biological and psychological motivations. By unpacking these, we can start to see the world through a cat’s eyes—and better understand how to guide the behaviour in safer, healthier directions.

Instinctive Hunting Behaviour

Cats are natural-born hunters, even if they live in the comfort of an Australian apartment with a steady supply of food. Their instincts remain hardwired. In the wild, cats often use their paws to test prey—nudging or swatting to see if it moves, whether it’s safe, or if it’s worth pursuing. A small object on your desk can trigger the same response.

  • Pens, jewellery, or even bottle caps mimic the size and unpredictability of small prey.
  • Swatting objects gives cats a way to satisfy their predatory drive in an environment where real prey isn’t available.
  • This explains why many cats immediately pounce after knocking something down—it feels like a successful hunt.

Curiosity and Exploration

Cats are highly sensory animals, and their paws serve as vital tools for exploring the environment. Knocking things over allows them to test:

  • Texture: Is it hard, soft, or slippery?
  • Movement: Will it roll, bounce, or shatter?
  • Sound: Does it make a satisfying crash that provides feedback?

This is especially true for kittens and young cats, who use play as a form of learning. Exploration through touch is one way cats gather knowledge about their surroundings, much like human toddlers do.

Attention-Seeking

Cats are clever enough to recognise patterns. If you rush over every time your cat knocks a glass of water off the counter, they learn that this is an effective way to capture your attention. Even negative responses—scolding, clapping, or sighing—can reinforce the behaviour, since from the cat’s perspective, interaction of any kind is a reward.

This is why many cats seem to target object-knocking during moments when you’re occupied, such as working on a laptop or scrolling on your phone.

Boredom and Lack of Stimulation

Cats are intelligent animals that require mental and physical stimulation. In Australia, where indoor-only living is increasingly encouraged to protect both cats and native wildlife, boredom can become a major issue. Without sufficient outlets for play and exploration, cats may invent their own forms of entertainment—and knocking things over is one of the most stimulating activities available.

Signs of boredom-related object knocking include:

  • Repeatedly targeting the same items.
  • Escalation of behaviour when ignored.
  • Pairing with other signs of restlessness, such as zoomies or excessive vocalisation.

The Behaviour in Different Contexts

While the root causes of knocking things over are similar across cats, the way this behaviour appears can vary depending on the circumstances. Factors like the time of day, household environment, and whether your cat lives alone or with other pets all play a role. Understanding these contexts helps pinpoint whether your cat is simply entertaining themselves—or signalling an unmet need.

Daytime vs. Nighttime Behaviour

  • Daytime knocking: Often linked to curiosity and exploration. Cats are most active at dawn and dusk, but during the day, they may swat objects to break up boredom.
  • Nighttime knocking: Many Australian cat owners complain about cats waking them by pushing items off bedside tables. This is frequently an attention-seeking behaviour—cats learn that knocking objects at night makes their humans react, whether it’s for food, play, or simply to stop the noise.

💡 Tip for Australian households: Providing structured evening playtime with feather toys or interactive feeders before bed can help tire your cat out, reducing nighttime antics.

Single-Cat vs. Multi-Cat Homes

  • Single-cat homes: A lone cat may use object-knocking as a way to self-entertain or grab your attention. Without another animal to interact with, their energy often gets directed at inanimate objects.
  • Multi-cat homes: In households with more than one cat, this behaviour may escalate due to competition or mimicry. One cat may start pawing at objects, prompting others to join in, turning it into a group activity. Sometimes, it also reflects dominance—one cat marking their presence by controlling the environment.

Indoor vs. Outdoor Cats

  • Indoor cats: More prone to object-knocking, as they have fewer outlets for hunting and exploration. This is particularly relevant in Australia, where councils and the RSPCA encourage cat curfews or full indoor lifestyles to protect native wildlife.
  • Outdoor cats: Less likely to obsessively knock things over because their energy is directed at real prey and varied environments. However, even outdoor cats may still indulge indoors—especially if they’ve learned it earns attention.

Psychological Insights: What Knocking Things Over Reveals About Your Cat

Beyond instinct and curiosity, the act of knocking things over can reveal subtle insights into your cat’s emotional state and personality. By paying attention to when and how your cat engages in this behaviour, you can often uncover clues about their psychological needs.

Self-Expression and Confidence

Some cats use object manipulation as a way of asserting themselves in their environment. Just as scratching marks their territory, knocking things over can be a form of control—proof that the world around them responds to their actions. Confident cats may do this more often, enjoying the cause-and-effect outcome.

“Cats are not just passive observers of their environment. They actively shape it, and knocking objects over is one way they demonstrate agency.” – Dr. Sarah Heath, Veterinary Behaviourist

Stress, Anxiety, and Frustration

Not all knocking is playful or exploratory. Sometimes, it can be a displacement behaviour—a way for cats to release pent-up stress. Common triggers include:

  • Sudden household changes (new furniture, moving house, or visitors).
  • Conflict with other pets.
  • Unmet needs such as hunger or insufficient play.

In these cases, the behaviour can escalate or appear more destructive, with the cat targeting fragile or significant items.

Age and Developmental Stages

  • Kittens: Knock things over as part of play and learning. Their actions are often clumsy, exploratory, and high-energy.
  • Adult cats: More intentional—knocking may be linked to attention-seeking or routine.
  • Senior cats: Less likely to engage in playful object-batting, but they may still do it as a response to stress, frustration, or even cognitive decline (such as feline dementia).

The Role of Breed and Personality

While all cats share similar instincts, certain breeds—such as Bengals, Siamese, and Abyssinians—are more energetic and curious, making them more prone to interactive behaviours like object-knocking. Laid-back breeds, such as Ragdolls, may be less inclined, though individual personality still plays a huge role.


Training and Redirection Techniques

Although knocking things over is rooted in natural feline behaviour, it doesn’t mean you are powerless to manage it. With patience, environmental adjustments, and consistent training, you can redirect your cat’s instincts toward healthier and safer outlets. The key is not punishment—which damages trust—but redirection and positive reinforcement.

Environmental Management

Cats are opportunists, so the easiest way to reduce object-knocking is to manage their environment.

  • Secure fragile items: Keep glassware, candles, and breakables away from ledges or shelves within paw’s reach.
  • Cat-friendly zones: Offer stable surfaces where it’s safe for cats to climb and explore without consequence.
  • Sticky deterrents: Double-sided tape or safe deterrent sprays can discourage cats from accessing certain areas.

💡 Practical tip for Aussie homes: Many Australian households use open shelving or window sills for décor. Replacing fragile ornaments with sturdy décor or plants that are safe for cats (like cat grass) helps protect both your belongings and your cat.

Positive Reinforcement

Cats learn more from rewards than punishments.

  • Clicker training: Reward your cat with treats when they interact with toys instead of household objects.
  • Redirection cues: If your cat approaches a tempting object, use a toy to redirect their focus, then reward when they engage with the toy.
  • Consistency: All family members should respond in the same way to reinforce learning.

Redirection Strategies

Giving your cat constructive alternatives is essential.

  • Interactive toys: Wand toys, feather teasers, or battery-operated chase toys.
  • Puzzle feeders: Engage their hunting instincts while slowing down feeding time.
  • Cat towers and shelves: Provide vertical outlets for climbing and pawing.

Scheduled Play Sessions

Structured play can prevent boredom-driven behaviour. Just 15–20 minutes of energetic play, twice daily, can significantly reduce attention-seeking object knocking. Mimicking hunting cycles (stalk, chase, pounce, capture, and “kill”) helps satisfy natural instincts.

Ignoring vs. Responding

  • Ignore for attention-seeking: If your cat knocks something over to get you to react, try not to engage. Clean up quietly and only reward good behaviour.
  • Respond for safety: If the behaviour risks injury or damage (e.g., glass or toxic items), intervene calmly and remove hazards without scolding.

Australian Context: Practical Solutions for Local Cat Owners

Living with cats in Australia comes with unique considerations. From the prevalence of indoor-only living due to wildlife protection, to the layout of Aussie homes and apartments, understanding the local context can help cat owners apply practical solutions for preventing object-knocking behaviour.

Cat-Proofing Homes in Australia

Many Australian councils now encourage or enforce cat curfews to protect native wildlife, meaning more cats live strictly indoors. This can increase boredom and curiosity-driven behaviours like knocking items over. To reduce the temptation:

  • Stabilise shelving: Secure bookshelves and display cabinets to walls, as cats often leap onto them to access higher vantage points.
  • Rearrange décor: Replace fragile vases, glasses, and collectibles with sturdier alternatives or cat-safe plants (such as cat grass or catnip). Avoid toxic Australian-native plants like lilies or cycads.
  • Use enclosed furniture: Cabinets with doors or glass enclosures protect delicate items while still allowing a stylish interior.

Adapting to Australian Homes

  • Apartments: Smaller living spaces can make boredom more likely. Install vertical spaces like cat towers or wall-mounted shelves to give cats safe climbing opportunities.
  • Suburban houses: If you have verandas or patios, consider secure “catios” or outdoor enclosures where cats can safely explore without harming wildlife.
  • Regional and rural homes: Cats may still be kept indoors due to wildlife risks. Enrichment becomes even more crucial to prevent stress behaviours.

Product Recommendations for Aussie Cats

Providing the right outlets reduces object-knocking by meeting your cat’s needs elsewhere. Some useful product types include:

  • Cat trees & climbing towers: Redirect vertical climbing away from shelving.
  • Interactive toys: Wand toys, laser pointers (used responsibly), and automated toys can provide stimulation.
  • Puzzle feeders: Help mimic hunting behaviour during mealtimes.
  • Scratching posts & mats: Offer alternatives to paw-based exploration.

RSPCA Australia notes that “providing enrichment such as toys, scratching posts, and interactive play not only reduces boredom but also prevents destructive behaviours in indoor cats.”

💡 Tip for Aussie buyers: Always check that products are safe for Australian climates—materials like sisal rope and treated wood stand up better in humid or hot conditions compared to cheaper alternatives that may warp or fray quickly.


Expert Insights and Quotes

When it comes to managing quirky feline behaviours, advice from animal behaviourists and veterinarians is invaluable. Their research and clinical experience help separate myths from reality, offering cat owners evidence-based strategies that work in the long run.

Behaviourists on the Nature of Knocking Things Over

Dr. Sarah Ellis, a feline behaviour specialist with International Cat Care, explains:

“Cats are natural experimenters. When they knock something over, they’re not being spiteful—it’s a way of learning about their environment. The noise, movement, and reaction all provide feedback.”

This reinforces the idea that punishment is not only ineffective but also misunderstands the motivation behind the action. Cats are not trying to “annoy” their owners; they’re following instincts.

Veterinarian Perspectives

Australian veterinarians also highlight the importance of enrichment. Dr. Jacqui Ley, a veterinary behaviourist in Melbourne, notes:

“Indoor cats, especially in Australia where we encourage containment, need structured outlets for their natural behaviours. Knocking things over is often a symptom of unmet needs, not bad behaviour.”

Her advice focuses on proactive solutions such as increasing interactive play and making the environment cat-friendly.

RSPCA Australia Guidelines

The RSPCA provides clear enrichment recommendations, stating that:

“Cats should have daily opportunities for play, exploration, and mental stimulation. Providing scratching posts, toys, and climbing structures is essential to preventing stress-related behaviours.”
RSPCA Australia

Professional Consensus

Experts agree on three key points:

  • Do not punish – It increases stress and can damage the human-cat bond.
  • Redirect behaviour – Offer acceptable outlets like toys, feeders, or cat furniture.
  • Address the cause – Whether it’s boredom, attention-seeking, or anxiety, the root cause must be managed for lasting results.

Historical and Cultural Perspectives

Cats have lived alongside humans for thousands of years, and their quirky behaviours—including knocking things over—have fascinated people across cultures and time. What we sometimes see as a nuisance today has roots in history, folklore, and even modern digital culture.

Cats in Ancient History

  • Ancient Egypt: Cats were revered for their hunting skills, particularly their ability to protect grain stores from rodents. A swat of the paw to test prey was considered a sign of agility and intelligence—behaviours not unlike today’s object knocking.
  • Medieval Europe: Cats were sometimes associated with mystery and mischief, often depicted in folklore as unpredictable companions. Knocking over items in the home could easily be interpreted as a “trickster” quality.

Folklore and Symbolism

In many cultures, cats have been portrayed as independent spirits with an air of mischief. Knocking things over can be seen through this lens:

  • Japanese folklore: The bakeneko (supernatural cat) was said to cause household disturbances, moving objects or making noise at night.
  • Western traditions: Cats have long been symbols of curiosity, which aligns perfectly with their tendency to investigate objects with their paws.

Social Media and Modern Perception

In the digital age, cat behaviours like object knocking have become iconic online. Platforms like YouTube, Instagram, and TikTok are full of videos of cats gleefully swatting glasses, pens, and decorations off surfaces. This trend has made the behaviour more widely recognised and, in many ways, celebrated.

While amusing, these viral moments sometimes overshadow the behavioural science behind them. Owners may laugh off the behaviour without realising it can also signal boredom or stress.

“The internet has given cats a global stage, turning natural behaviours into memes. But every viral video is also an opportunity for education about feline needs.” – Pet Behaviour Analyst, Cat Protection Society of NSW

Cultural Shift Toward Indoor Cats in Australia

In Australia, the cultural view of cats has shifted significantly over the past few decades. Where once it was common for cats to roam freely outdoors, increasing awareness of the impact on native wildlife has driven a shift toward indoor-only or enclosed living. This has unintentionally made behaviours like object-knocking more noticeable, as cats spend more time indoors where household items become their “prey.”


When to Seek Professional Help

While knocking things over is usually a harmless quirk, there are situations where it may indicate something deeper. Understanding when to step in with professional help ensures your cat’s health and wellbeing are safeguarded.

Red Flags to Watch For

  • Sudden changes in behaviour: If a normally calm cat suddenly begins knocking objects over obsessively, it may signal stress, anxiety, or even medical issues.
  • Excessive frequency: Cats that constantly knock items over despite enrichment and redirection may be experiencing unmet needs.
  • Aggressive undertones: If the behaviour is paired with hissing, growling, or destructive intent, it could point to frustration or territorial stress.
  • Linked with other symptoms: Weight loss, appetite changes, or withdrawal combined with object-knocking should be taken seriously.

When to Consult a Veterinarian

A vet should be your first stop if you suspect the behaviour is tied to health issues. Conditions such as hyperthyroidism, cognitive decline in older cats, or neurological issues can sometimes manifest as unusual repetitive behaviours.

When to See a Behaviourist

If your cat is healthy but the behaviour persists, a certified animal behaviourist can provide tailored strategies. They will:

  • Assess your cat’s environment and triggers.
  • Develop a customised training and enrichment plan.
  • Guide you in reinforcing positive behaviours without punishment.

Australian Resources for Help

  • RSPCA Behavioural Support: Many RSPCA branches across Australia offer advice lines or training workshops.
  • Cat Protection Society of NSW: Provides resources on feline behaviour management.
  • Private Veterinary Behaviourists: Available in major cities like Melbourne, Sydney, and Brisbane, offering in-home or clinic consultations.

💡 Tip for Aussie owners: If you live in a rural area where access to specialists may be limited, telehealth vet consultations have become more widely available across Australia, making expert advice accessible no matter your location.


Frequently Asked Questions (FAQs)

1. Why does my cat only knock things over at night?

Cats are naturally crepuscular—most active at dawn and dusk. However, in many households, they learn that nighttime object-knocking earns attention from sleepy owners. If your cat pushes items off the bedside table at 2 a.m., it’s likely an attention-seeking strategy. Providing evening play sessions and scheduled feeding before bedtime can reduce this behaviour.

2. Can cats be trained not to knock things over?

Yes, but it requires patience and consistency. Cats respond best to positive reinforcement, not punishment. Reward your cat when they play with toys instead of household objects, and redirect them with interactive play when they start eyeing up fragile items. Over time, they learn that toys equal rewards, while object-knocking is ignored.

3. Are some cat breeds more prone to this behaviour?

Energetic and curious breeds such as Bengals, Siamese, and Abyssinians tend to engage in object-knocking more frequently. They thrive on stimulation and often explore with their paws. More laid-back breeds like Ragdolls or Persians may do it less, though individual personality matters more than breed alone.

4. What should I do if my cat knocks over dangerous items?

Safety is the priority. Immediately remove toxic substances, fragile glassware, candles, or plants harmful to cats (like lilies, which are highly poisonous). Replace these with cat-safe alternatives such as sturdy décor or cat grass. Securing shelves and using enclosed cabinets also prevents accidents.

5. How can I provide enrichment for an indoor-only cat in Australia?

Indoor-only cats need plenty of stimulation to prevent boredom. Consider:

  • Interactive toys: Wand toys, puzzle feeders, and rotating electronic toys.
  • Vertical spaces: Cat towers, shelves, or even catios (outdoor enclosures) for safe exploration.
  • Routine playtime: Two or more structured sessions daily that mimic hunting cycles.
  • Environmental variety: Rotating toys and rearranging safe climbing spaces to keep the environment fresh.

💡 In Australia, where many councils enforce cat curfews, these enrichment strategies are especially important for indoor cats to prevent frustration-driven behaviours like object-knocking.


Conclusion

Cats knocking things over may frustrate their human companions, but from a feline perspective, it is a perfectly logical behaviour. Rooted in instincts to hunt, explore, and seek attention, this habit reveals much about a cat’s psychology and needs. What looks like mischief is often curiosity, boredom, or a simple bid for interaction.

For Australian cat owners, the shift toward indoor-only living has made this behaviour even more noticeable. Without access to outdoor stimulation, cats channel their energy into exploring the home environment—which may include swatting pens, cups, or ornaments. The solution lies not in punishment, but in understanding and redirection.

By:

  • Providing enrichment through toys, puzzle feeders, and vertical climbing spaces.
  • Cat-proofing homes with secure shelving and safe décor.
  • Engaging in daily interactive play to satisfy hunting instincts.
  • Responding calmly and consistently rather than with frustration.

…owners can reduce object-knocking while strengthening their bond with their pets. In cases where the behaviour escalates or seems linked to stress or illness, seeking veterinary or behavioural support ensures your cat’s health and happiness.

Ultimately, this quirky behaviour is part of what makes cats the fascinating, independent, and entertaining companions we love. With the right balance of patience, enrichment, and care, you can protect your belongings while allowing your cat’s playful nature to shine.



Disclaimer:

The information provided in this article is for general informational and educational purposes only and is not intended to substitute professional veterinary, behavioural, nutritional, or legal advice. While every effort is made to ensure accuracy, PetCareShed does not guarantee the completeness or reliability of the content. Always consult with a qualified veterinarian, certified dog trainer, or local authority before making decisions that could affect your pet’s health, behaviour, or safety. Product recommendations are based on general suitability and should be evaluated according to your pet’s individual needs.

PetCareShed does not accept liability for any injury, loss, or damage incurred by use of or reliance on the information provided in this guide.

About the author

Written by Ethen Intisar, the co-founder of PetCareShed, an Australian pet supplies store known for its thoughtful, research-backed products and content.

Ethen shares practical, research-backed insights to help pet owners make informed care decisions—supported by expert input from vets and trainers.

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