It is hard to say what to do with him, I personally think when you break them up before fighting instead of letting them do it and then getting onto them (electro-therapy is my choice) you run the risk of upping the more dominant one's ego...
We have a yellow dog named Charlie, he is some what handicap but he is a hog finding and catching machine. If I put him in the yard with the two red males they will stretch him out in a hear beat if my husband isnt here or if I am not outside with them while he is gone...they have done this all on several occassions, now if you put them in the yard while my husband is here Charlie walks around with his nub sticking up and hackles raised trying to instigate it but nothing ever happens other than a little growling; you can also stuff all of them in the dog box together and ride 3 hours and the most you will ever hear is a little growling...but it is short lived.
The same goes for our CD, I put him in the pasture tonight (husband was gone) and walked over to my moms. Well I hear our hound baying like crazy so I walk outside and see our little female at the gate. All the puppies are going crazy and NO Psycho, well the close I get I realize they have him down. 7 puppies and 3 grown dogs have this 110lb mastiff x stretched out....I go to discipline tthem (I have to be very careful of my actions because the neighbors are nosey) and they scatter like roaches - needless to say I have a 110 lb dog sleeping in my laundry room because they put a whipping on the poor old one lunged man
but again, you can stuff them all in the dog box and ride for hours or even pen them together and they are well behaved but you let my husband leave and me go inside without seperating them into certain groups and they are going to cause trouble...
I would say you are just going to have to figure out whether he is worth keeping and work around his nonsense until you can get him broke of it or semi-broke of it....none of ours are leaving because they are worth too much to us plus they are little saints until I am here by myself, then the heathens seem to come out to play
