Basically when I'm mad, I really don't know how to calm down. Perhaps I'd just punch the wall or kick everything that catches my sight? If I'm sad I'll just cry, it really helps.
I guess i take a walk, and uhm listen to and play music, as alot of the music i like is kinda angry music, so its fitting in with letting anger out and diffused. . . Can't say i get mad though, i'm very laid back and a peaceful entity really