Grown men fighting can end a couple of different ways. If they are brothers they will take it outside for an old school wrestling match. If they are friends they will stop talking to each other until they are both over it. If they are 21 they will solve it with a fist or slap fight. The moral of the story is most times guys can work it out...UNLESS they have to work together. If they work together they don't want to talk about it, they will never listen to each other or admit that they other person may be right so how do you get them to resolve there issue?