Lhasa apso dogs, which look like shih tzus, potty outside, though they can be paper-trained, but they otherwise have personalities like cats since they were bred to resemble miniature lions. They have the same superior attitude, disdain for training, and can spring up onto high places when they're young and strong ("lhasa apso" supposedly means something like "nimble like a goat" in Tibetan). They are the size of cats. If the living situation changes so your house is no longer the "hotel," and you want a cat later, they get along well with cats.