Same thing happened to me John3... driving down the highway a few years ago and a bee smacked into my hand. Not really sure what happened to the bee, guess it died on impact. but it's amazing at the reaction time they need to sting or bite you. the stinger wasn't barbed and it blew off of my hand in the wind, so i can safely assume it was a wasp. it hurt for a good day though.
other stories:
I was about 7 or 8 and my brother and i were throwing a nerf ball back and forth on our lane. the ball landed in some vegatation about 10 feet away from me and the bees chased me all the way to the house. my parents know the count but I believe that i was stung 27 times or so. about an hour later with my mother's help, i looked like the arm & hammer monster.
my family was having a cookout and a bee flew up my brother's shorts, he sat down to eat and the bee stung him on the butt. he was laughing more than crying, matter of fact, I think we were all laughing. hehe
about 2 years after the sworm of bees stung me, a bunch of us were playing outside and a bee flew into my pocket. like the smart kid i was, i reached into my pocket and then irony ensued. that hurt the worst out of all the times i was ever stung just once.