Uh, cats, because I'm fucking lazy and I don't like taking care of babies, which, dogs aren't babies, and babies are a lot worse to deal with, but, respectively, alright, you show a cat litter box, like, once, and it never shits on the floor again, you know how much time and effort it takes to train a dog? I ain't got the patience for that, alright, I really don't care that much.