Anyone who has lived with a cat has at least once found a puddle in their shoes or slippers. Many are sure that their pet is taking revenge for punishment.
But scientists and animal psychologists are rushing to debunk this myth.
Cats are not capable of revenge. Their brains do not process abstract concepts like justice or intentional harm. Instead, their behavior is explained by instincts and a reaction to stress.

When a cat bites, scratches, or ignores the litter box, it is not a planned act of retaliation.
Most often, we are talking about redirected aggression. When experiencing discomfort - for example, due to a loud noise or a conflict with another animal - the pet accumulates tension.
Later, he splashes it on the first object he comes across, be it the owner's slippers or the corner of the sofa. Everything happens impulsively, without malicious intent.
The story is more complicated with the tray. Cats are extremely meticulous when it comes to hygiene. If your pet suddenly starts walking past the toilet, the reason may be in the wrong filler, a cramped tray, or its unfortunate location.
A noisy room, strong smells or dirt also provoke stress. In a calm environment, the cat tolerates discomfort, but the slightest shock - for example, screaming or punishment - deprives it of the strength to cope with discomfort.
Sometimes "surprises" in shoes are a way to signal anxiety. The human scent that slippers absorb is associated with a source of stress for the cat.
By marking them, the pet tries to cover up the "dangerous" scent with its own in order to calm down. The more often the owner scolds the animal, the more anxious it becomes and the more persistently it leaves marks.
The solution is simple: instead of punishment, you should reconsider the cat’s living conditions.
A clean litter box with the right litter, a quiet place to rest, and respect for your pet's personal boundaries will do wonders.
Trusting relationships reduce stress levels—and your slippers stay dry.