Hey, thanks for all the input guys (except Pickle

).
Apparantly my sister and older brother tried again this afternoon with both dogs having muzzles. Didn't work. Bouche is extremely traumatized now. It really isn't in his natural to fight, growl, or even bark. We're thinking we just have to have them avoid each other until my little bro comes home from Houston. If this was a permanant situation then we might try harder but for only one week it isn't worth putting the dogs through all that stress. Oh well.