Fictional animal for a pet

There's an unlimited number of animals born completely of the imagination of authors. We've all seen them in games, movies, books, and more. If you could select a fictional animal to be your pet, what animal would you choose and why?

Offhand, the only thing I can thing of is a " Tribble ", I think that's what they call them. Ya know on "Star Trek" in the episode "The Trouble With Tribbles" or something like that.

Only bad thing about them is that they multiply too fast - I don't like that. I wonder if you can have them spayed or neutered????

I'd have a Mr. Saturn. Easily. No contest. zOoMEr!

Phantasy Star wise I'd choose a Locusta. Because they look awesome and they are massive insects and if you trained it to be loyal and protective nobody would ever trespass through your backyard or break into your house. Locusta for me.

I'd go with a Pipe Fox from the series xxxHolic. It's too cute!~ It looks like a little fuzzy snake with ears~