Haha, well, I understand that. I'm not a violent person (never actually hit anyone in my life) but just doing something violent is a nice feeling, though sometimes I can do what feels VERY violent to me and get no relief, haha.
Though shooting a gun at old toys seems to give me a plethora of mental peace
For me, it's really anything that just leaves me tired and spent. Could be running, building, violence, but it has to be physical. Don't know why, but I don't get proper stress release from mental exercise, or relaxation.