"That's fine. But that's also a different thing than routine care." Especially when it comes time for potty breaks, nobody's gonna be jumping line to take care of that!

DID he just want a pet? He could probably get one if he really wanted to, and though Tidus may be joking, Xehanort takes a moment to actually, seriously consider it. His original desire for a dog had been to put their exceptional noses to work, but it seemed their rainbow foe might not be as much of a future threat as people feared. Did he want one just as a pet? "I like cats just as much," he says eventually, slowly, "When it's my cat."

Someone else's cat is just an obnoxious fuzzball getting hair on his stuff. HIS cat would obviously, be a superior kitty.