Hello all, New to this thread. I have 2 APBT. One 5 year old male and a 1 1/2 year old female. My question is one training the hyper female to not play fight with my male. They are fine when Im with them, but the minute I walk out of the room shes bitting him. My male wants nothing to do with it but will defend himself. She has never hurt him but he always has scratches around his ears and neck. She is the dominant one, 85 lbs, hes only about 55. I would love to leave her out of her cage with him in the house during the days but have no idea how to teach her not to do this. I have tried everything over the last year and no luck. Also she is great with my cat, no problems. Just wont leave my boy alone. They are both fixed.