Behaviour & training
Resource guarding
Defending food, a toy, a spot or a person from someone approaching — normal animal behaviour that becomes a problem when it escalates in a living room.
An animal that has something valuable and expects to lose it will try to keep it. The sequence is usually readable long before teeth are involved: eating faster, freezing, a hard stare, a lifted lip. Punishing those early signals does not remove the feeling, it removes the warning, and a dog that has learned not to growl is more dangerous rather than less.
The work is changing the prediction. If a hand approaching the bowl reliably means something better gets added to it, approach stops meaning loss. Taking things away to "show who's boss" teaches the opposite lesson very efficiently.
Related
More in Behaviour & training
Positive reinforcementAdding something the animal wants immediately after a behaviour, so the behaviour happens more often — the R+ of training, and a technical term rather than a synonym for kindness.Socialization windowThe early period when a puppy or kitten accepts new things readily, and after which the same things start to be treated as threats.Redirected aggressionAn animal worked up by something it cannot reach turns on whoever is nearest — the classic cat-at-the-window incident.Counter-conditioningChanging what something predicts, so the animal's feeling about it changes — the nail clippers stop meaning restraint and start meaning chicken.DesensitisationExposing an animal to a trigger at an intensity low enough to stay calm, then raising it in steps small enough that calm never breaks.Trigger stackingStress that has not been given time to clear adds up, so a small final trigger produces a reaction wildly out of proportion to it.