I find running really relaxing and effective against (mostly work-related) stress. All I think about is the next step, and if I'm running outside I really like looking at the landscape. Also at other people. Preferably male runners in good shape
Besides that, throwing things at people (or at the wall if there are no people around) helps a lot too
It's a good thing I learned how to deal with stress, I live in the land of the impossible deadlines.