I have a 5 year old, boxer mix, Boston. Last week I brought home a white boxer puppy that is deaf. I joined this forum to learn more about how I should be training my puppy, Beaux. I don't have many issues with the 2 of them interacting. Boston is definitely the alpha dog and only gets mad if Beaux tries to steal a toy she is playing with. When she does, I remove the toy and the problem is solved. She's really patient with him, and even lets him nibble her. Needless to say, they're my loves.