Thanks for the warning! However, please do NOT call vespids "Bees". They are Wasps. Bees include Honey Bees, Carpenter Bees, Bumble Bees, and species that are small and solo. They are all somewhat "hairy". Wasps include Yellow jackets, Ground Hornets, Bald-Faced Hornets, Paper Wasps, other obvious wasps. They are all smooth, no "hair".
Honey Bees can only sting you once, vespids can sting repeatedly. I have lots more information on this, but that should be good for now.
Oh, and while they do hurt a little bit, bee stings aren't that bad for me. Yellow Jackets, however, I react to with a swelling the size of and egg for several days and much more painful (to me).