Title says it all. Our new puppy Charlie, which I think narrowed him down to a Black Mouth Curr/Lab mix, is quite brave and not easily deterred by our 4 year old cat. He occasionally likes to chase, corner and then "play" with her. Obviously our cat doesn't see this as fun, so she swats at him, maybe a warning hiss. Meanwhile Charlie seems to think the swatting is hissing is even more entertaining, so he swats back, and barks. :wall: Sadie was quite easy to train with this problem. She didn't like being clawed in the face and immediately learned, messing with the cat was a bad idea. Charlie on the other hand thinks it's a fun game. "no" and "leave it" are suddenly no longer heard. How can I nip this problem while he's still young? He's growing fast and I'm afraid he may end up hurting our cat some day.