(Image credit: AverageSexGod)
The animals you live with are just waiting for an opportunity to take your stuff, jump on the bed, climb the curtains, or eat the couch …just anything that they aren't allowed to do, and they know it, whether they care or not.
As a general rule, the dogs seem to regret their actions, or at least they regret being caught, while cats act as if you are in the wrong for confronting them. They only regret that you've stopped their fun. See over 200 images, many of them gifs, of dogs, cats, and a few other animals who were caught in the act at Bored Panda.