*Things that they can easily be. It's not like all animals are these fluffy sacks of love fluff. In fact, there are probably more animals that act "viciously" than there are "nice" animals living in people's homes, and even the kinds of animals you describe can easily be set off.
let's consider black people for a second
there are plenty that are vicious and/or gross ("wild")
more than there are proper ones, perhaps
but I'm willing to say that the majority of those live in third-world african countries
and in some cases, when they're raised improperly or not taken care of, they can become vicious and/or gross in developed countries such as the US
but in general they are in much better shape than those in africa ("domesticated"), and I do not generalize the entire population because of the others
and even if I had had a terribly scarring incident with a black person in the past, I would not dislike all of them I'm sure
I'd like to think that's a good brown townogy I've just made