I don't get into physical fights usually. Yes, I do have verbal fights when people try to act smart and do not accept responsibility. For example, an actor's job is to act. One should do that professionally. It will be wrong if while shooting one asks for a break or throw some tantrum or doesn't come for the shoot. I just hate it and tell that person publicly that it's his/her job and he/she should do it without being lazy. I don't fight but I make that person see my points in unambiguous terms.
Oh that's amazing!