I've tried keeping these cats outdoors. They have shredded every screen we have by jumping up and hanging on them and screeching. And they have also ruined the weather stripping on all our doors and scratched the actual doors up. Cats are horrid animals that destroy my house and everything in it. The first time we went on vacation I came home to my brand new mattress full of cat urine. I should skin them and make a beautiful pair of mittens.