I went to an all male high school, and I can honestly say that out of the 280 kids in my graduating class, there was no one that was an "outcast". You may hear an occasional jab at someone, but nothing of any consequence. There may have been 1 or 2 kids that went out of their way to be d-bags, but it was few and far between. Otherwise, yes, I think that is always going to be "that guy" in every group.