I used to carry a tear gas pen (before concealed carry was allowed). Someone said, "A guy would have to be crazy to attack you!" I said, "Exactly, and that's why I carry the tear gas." At 6' 2" and 250 lbs, I'm a large guy, and yet that has not stopped crazy people from attacking me. It is my experience that freaks go for the biggest guy in a group first, because then everybody else stands around watching. The little guy isn't going to get involved with a freak that appears willing to attack the biggest guy. I've been attacked even when I wasn't a part of the group that the attacker had an issue with, and everyone always just backs away. The tear gas pen was sweet. It would clear out three floors of a building within minutes.