You could try working with treats and getting him to come to you. Just make sure you're relaxed and calm when doing it so he doesn't become more spooked. Or just lay on the floor and wait for him to come to you and give him praise and treats when he does. Any time you would get into a fight take the dog out of the room. I don't even raise my voice in front of mine. If I feel that situation escelating I remove the dogs from the room. Kind of like a child...you don't want them to see it. But I do agree with Borzoimom on it as well. I'm sorry that you're in that situation because when things do go wrong that dog is the one that is there.