I have made a habit of constantly touching metal where ever I go to lower the chances of surprise static shocks. Its abit of an imposition on my life but its worth it, and because i go to such an effort i am especially irritated by people who purposly go out of thier way to shock me, so much that I proceed to slap them in the face. I am not joking, it's only really happened once, but i would do it again.