I've got none. Which is fine with me. The apartment has a stingy no-pet policy and I'm around animals all the time, so it's like owning pets, having the responsibility but not paying for it. If that makes sense.
Sometimes if it's an emergency. Reptiles are super fun to work with, since they're pretty chill. Birds decide to dig into my hair and then poop on me right after. The relationship is strained, there.