Hey Lisa, i've mixed two together many times, grief usually arises, and I always allow Alpha to be Alpha, by not stepping into their arguments, They "RARELY" will hurt one another!! If one was much older than the other, I would roll the oldest one over belly up, and allow nature to take its course, Our Bully's are very respectful of us believe it or not. I say this, but I have to say under a very watchful eye!! (Very Important" I refuse to let them lame one another, but the fight for Alpha is so normal. Rambo attempts to be Alpha over Rocky..... They never fight, but Rambo drives me crazy and Rocky too by his constant humping! But when Rocky's in a good mood, I often see him doing the same, Growling out "Who's your Daddy Now"? I see it all! I don't dare leave them unattended ever without first crating them! Just some ideas, I've seen DavidH confirm doing this same thing, Just an idea.
