The other day I was working on this lady's house (I work in maintenance on an army base), she came outside to talk to me while I was working and a bee flew past her head. Immediately she started flipping out, waving her arms and trying to smash it, all the while screaming at the top of her lungs. The bee ended up getting hit and promptly stung her on the leg and she ran in the house screaming how she knew it would sting her. I was outside her house about 15 minutes with that bee buzzing around my head and I was never touched, I couldn't help but laugh at that.
Bees only sting in defense and if she woulda just calmed down and let the bee fly past her, he would have completely ignored her. All they care about is their home and collecting food.
Over-reacting (in any situation) is a great way to get stung.