In the Household Pet category, the cat MUST be spayed or neutered. They do not allow declawed cats. Any breed that is not show quality (MooShoo for instance that has poor eyes or my American Curl that doesn't have the 3rd degree curl of the ears) would do better in Household Pets. Any kind of cat can be shown (with the exception of the Munchkin which is only allowed in certain associations). I COULD have shown MooShoo in purebred but I knew that his eyes would be counted against him. Especially if there were other Sphynxes there with perfect eyes.