Kuma is not a cat lover!! We have two cats (one outdoor and one in-door only) and I don't trust him with either of them. He loves the chase. My in-door cat (Siamese) is older and she is terrified of him. We affectionately call him the "beast" LOL! If my out door cat runs, he is after her. So I keep him on a leach and have total control of him all the time. He is crate trained, so when he out, we make sure they are safe. I never have him off his leach when he outside. We take him to the dog park and that is where he gets most of his exercise. He just loves being there!!!