Yikes. I was driving once and a wasp ricocheted off the door frame and landed between my back and the seat. It stung me. I couldn't pull over. So in my infinite wisdom I tried to squish him with my back. It didn't work. The bastard stung me again. And again.
@-AJ- Plus, wasps can sting you more than once (heh, imagine such an insect that was REALLY ticked off at you). At least with a bee sting, one gets SOME satisfaction...it's gonzo.