Before I started putting a leash and harness on Charlie, she was a killer. She'd bring home birds, rabbits, squirrels, and anything else you can think of. Now she's so much better. She's really good with putting it on too. Charlie stands by the door, meows to go out, either me or another member answers her call, and puts the harness and walks her around or clips the harness to a long rope in our yard.