Rule out the body before you train the mind
An animal that has done something reliably for years and abruptly stops is describing a symptom. A house-trained dog urinating indoors, a cat suddenly missing the box, a friendly animal snapping when touched, a sharp increase in sleeping or in restlessness — every one of those appears on a list of behaviour complaints and a list of medical ones. Urinary tract disease, arthritis, dental pain, thyroid disease, sensory loss and cognitive dysfunction all show up first as behaviour.
Retraining an animal that is in pain does not work and is unkind. Book the exam first. If the vet finds nothing, you have lost an appointment fee and gained a clean starting point; if they find something, you have avoided months of pointless correction. This page describes how behaviour problems are usually structured; it does not diagnose your animal, and anything involving aggression belongs with a professional in person.
Barking and vocalising — one sound, several causes
Owners describe barking as a single problem. It is at least three, and the responses conflict, which is why generic advice so often makes it worse.
| Type | What it looks like | General direction |
|---|---|---|
| Alert or territorial | Triggered by passers-by, deliveries, sounds at the door; stops when the trigger leaves | Manage the trigger — window film, moving the bed away from the front window, sound masking — and reward the quiet after the first bark rather than punishing the bark |
| Demand | Directed at you, for food, attention or the door; escalates if you respond, stops when you engage | Consistency across everyone in the house. Intermittent giving-in is the most reliable way to strengthen it |
| Distress when alone | Begins within minutes of departure, continues, often with pacing, drooling, destruction at exits, house-soiling | This is not disobedience and punishment worsens it. Film a departure and take the footage to your vet |
| Frustration or boredom | Long stretches with no trigger, often in under-exercised or under-stimulated animals | Physical and mental work, feeding puzzles, scheduled activity. Not a substitute for the above if the cause is distress |
| Medical or age-related | New in an older animal, often at night, sometimes disoriented | Veterinary assessment first. Pain, sensory loss, blood pressure and cognitive dysfunction all cause it |
If neighbours have complained, filming an absence is the highest-value ten minutes available to you. It separates a dog that barks for two minutes and settles from one that never settles, and those are completely different problems with completely different solutions.
House-soiling, in the order it should be investigated
Work down the list rather than jumping to the end. Medical first — urinary tract disease, kidney disease, diabetes, incontinence and gastrointestinal problems are common and treatable, and a cat straining in the box with little output is a potential emergency rather than a behaviour issue, covered in the pet emergency guide.
Then access. Senior animals soil indoors because the box has high sides, the stairs to it are hard, or the only box is on a floor they no longer visit comfortably. The standard advice for multi-cat homes is more boxes than cats, spread across the house rather than lined up in one room, kept clean, and away from noisy appliances and dead ends where a cat can be cornered. Litter type and box cover both matter more than owners expect, and a cat that has developed an aversion to a substrate will tell you if you offer a choice side by side.
Then anxiety and marking, which is different from emptying a full bladder: small amounts, vertical surfaces, often triggered by a new animal, a new person, building work, or a cat visible outside the window. Cleaning matters here — an enzymatic cleaner rather than an ammonia-based one, which smells like urine to the animal. Punishment after the fact accomplishes nothing except teaching the animal to go where you are not, because they do not connect a correction with something they did earlier.
Cats: scratching, night activity and the things owners misread
Scratching is normal and necessary — it maintains claws, stretches the body and marks territory. The goal is location, not elimination. When a cat ignores a new post, the reason is usually one of four things and you can test them one at a time.
| Variable | What to try |
|---|---|
| Material | Sisal, cardboard, carpet and bare wood are not interchangeable. Look at what she is already using and match it |
| Orientation | Some cats are vertical scratchers, some horizontal, some both. Offer both |
| Height and stability | Tall enough for a full stretch, and heavy or anchored — anything that wobbles gets abandoned after one try |
| Location | Next to the furniture being scratched and near sleeping spots, not hidden in a spare room. Move it gradually once used |
Declawing is amputation of the last bone of each toe, is associated with lasting pain and behaviour problems, and is banned or restricted in a growing number of places. Nail caps, regular trimming and appropriate posts are what your vet will point you at instead.
Night activity is a different complaint. Cats are naturally crepuscular, and a cat that sleeps all day while the house is empty has energy to spend at four in the morning. Structured play in the evening ending with a meal fits the hunt-eat-groom-sleep pattern better than free-feeding and hoping. But new night activity in an older cat, particularly loud disoriented vocalising, is a veterinary question first — see the senior pet care guide.
Leash pulling and reactivity
Pulling is mostly mechanical: dogs move faster than we walk and pulling has historically worked. Front-clip harnesses and head halters change the geometry so pulling is less effective, and rewarding a loose leash consistently does the rest. It is slow and boring and it works.
Reactivity — barking, lunging and growling at other dogs or people on walks — is not the same thing and is usually fear or frustration rather than aggression, though it looks alarming and can escalate. The general approach is distance: work far enough from the trigger that the dog notices but does not react, pair the trigger with something excellent, and reduce distance over weeks. Walking into the trigger and correcting the reaction teaches the dog that the sight of another dog predicts something unpleasant, which is exactly the association you are trying to undo.
Methods, and when to escalate
Aversive methods — prong, choke and shock collars, alpha rolls, physical correction — are associated with increased fear and aggression and with damage to the relationship, and the dominance model they rest on has been abandoned by the field that produced it. Your dog is not staging a coup. Reward-based methods have better evidence behind them and a worse marketing budget, and anyone promising to fix aggression in one session with a special collar is selling suppression of the warning signals rather than a change in how the animal feels. A dog that has learned not to growl still bites; it just stops telling you first.
Know the difference between a trainer and a veterinary behaviorist. A good trainer handles manners, recall, leash skills, puppy socialisation and mild fears — look for one who explains their methods, welcomes you to watch a class, and is credentialed by a body that requires humane standards. Genuine aggression, severe separation distress, compulsive behaviours and sudden personality change need a veterinary behaviorist, a veterinarian with specialist training who can diagnose medical contributors, prescribe where appropriate, and build a plan alongside a trainer. Your regular vet makes that referral.
Go early. Behaviour problems consolidate with practice, and the version of the problem you have in month one is smaller than the version you will have in month eight. Owners routinely wait until there is an incident with a visitor or a neighbour, and by then the options are narrower for everyone, the animal included.
Questions people ask
My house-trained dog has started urinating indoors. Do I need to retrain him?
Not first. A previously reliable animal that stops is describing a symptom, and urinary tract disease, kidney disease, diabetes, incontinence and pain are all common causes. Book a veterinary exam before any retraining. If the exam is clean, then look at what changed in the household — a new schedule, a new animal, building work — because anxiety-driven soiling responds to the trigger, not to correction after the fact.
The neighbours say my dog barks all day when I am out. Where do I start?
Film a departure. It costs nothing and it answers the only question that matters: does he bark for a few minutes and settle, or does he never settle. The first is boredom or alerting and responds to management and enrichment. The second, especially with pacing, drooling, destruction at doors and windows, or soiling, looks like separation distress, which is a veterinary conversation rather than a discipline problem — punishment makes it reliably worse. Take the footage to your vet.
I bought a scratching post and my cat still uses the sofa.
Test the four variables one at a time. Material — look at what she is already shredding and match it, since sisal, cardboard and carpet are not interchangeable. Orientation — some cats scratch vertically, some horizontally. Stability and height — it must not wobble and must allow a full stretch. Location — put it right beside the sofa she is using and near where she sleeps, then move it gradually once she has committed to it.
My dog lunges and barks at other dogs on walks. Should I correct him with the leash?
Corrections at the moment of reaction tend to backfire, because the dog learns that the appearance of another dog predicts something unpleasant, which strengthens exactly the association driving the behaviour. Reactivity is usually fear or frustration rather than aggression. The general approach is to work at a distance where he notices the other dog but does not react, pair it with something he genuinely values, and close the distance over weeks. If he has made contact with another dog or a person, get professional help rather than working on it alone.
How do I know whether I need a trainer or a veterinary behaviorist?
A trainer is right for manners, recall, leash skills, socialisation and mild fears; look for someone who explains their methods, lets you observe a class, and holds a credential from a body with humane standards. A veterinary behaviorist — a veterinarian with specialist behaviour training — is the referral for genuine aggression, severe separation distress, compulsive behaviour or an abrupt personality change, because those need medical assessment and sometimes medication alongside the behaviour plan. Ask your regular vet for the referral, and be sceptical of anyone promising to resolve aggression quickly.