Or maybe you should take up medieval reenacting. My fiance says getting to hit people with sticks is very theraputic, lol. You get to relieve all of your agression that you hold inside. I have found it interesting that a LOT of the guys who do it are in the military or are ex-military. My theory is that they were trained to fight and to kill, but they have to hold all of that in while in the regular world and medieval combat allows them to think in a military way, think in a self-preservation way, allows them to physically hit someone else and allows them to have a drive to win. For Stuart, it is sort of a combination of physical release of agression and meditation. In between fights he is very quiet; he focuses on his breathing, and once that's recovered (lol), he watches the other fights and studies the other people's moves and visualizes what he will do to combat those moves. He says it's not unlike asian martial arts in terms of how you have to think and compose yourself. The moves are a bit different but the philosophy is the same.