This topic was brought up elsewhere on this forum and deserves it’s own thread. I was asked to provide sources to some of the statements I made on that other thread. For those who want specific references, it’s easy enough to simply type “do dogs and cats get angry and retaliate” and dozens if not hundreds of sources will be readily available which support what is written here.
Dogs, cats, other pets and probably every other animal on the face of the planet do not possess the intelligence, complex emotions and thought patterns that humans do. They don’t get angry in the sense that they experience an emotional reaction to a perceived slight and subsequently plot some sort of revenge. While they may become aggressive in response to a threat while protecting their territory, their young, or their food supply, they aren’t “angry” and they are incapable of retaliation in the same sense as humans are.
Animals don’t plot revenge or hold complex grudges. If you step on a dog’s tail, startle a sleeping cat, or push their boundaries, they may retaliate with a bite, swat, or growl. This is simply their way of saying, “Stop that, I feel threatened”.
If a cat urinates on your bed, or a dog destroys your shoes while you’re away, it is usually a stress response. Pets often do this when they are suffering from separation anxiety or seeking self-soothing comfort because your scent is the strongest there. It’s not because they’re “angry” and trying to get back at their human by intentionally performing an unwanted behavior that they know will upset their human.
Another example is when a pet owner comes home and sees or smells dog poo and knows there was an accident especially because the dog is “acting guilty”. Some take it to another level and punish their pet by pushing their face into the feces. Not only is this abusive, it’s counterproductive as the pet has no clue why you’re doing this. The pet wasn’t “acting guilty” it was picking up on the body language and harsh tone of the owner who realized there had been an indoor accident.
A dog is not “snubbing you” or giving you the silent treatment because you put it in a kennel for a week. The cat didn’t urinate on your pillow because you gave the dog more attention and the cat didn’t tear up the carpet to get even with you because it was angry that you locked it in the room.
Behaviorists confirm that cats lack the cognitive ability to plan payback, hold grudges, or feel complex human emotions like guilt. These are stress reactions to anxiety producing situations, nothing more.
It is tempting and too easy to attribute higher levels of intelligence and thought to behaviors of our beloved pets who react and operate on a much more basic level than we do.
(Post edited by the Forum team to comply with the Community Guidelines).

