Even my turkeys, quite possibly the dumbest animals I have around, don't mess with the bees any more after their first time!
I think a lot of people just mentally lump them together with wasps and hornets, which can be much more aggressive.
Usually a bee flies into hairs and can't escape, people panic and try to make it go away and then it stings.
It's not that bad, hurts for a few minutes only, if you are not allergic. My grandpa said it helps for reumatism and he tended to bees with only a veil.
I wonder if American bees are the same as European ones.
Trading queens and trying to switch them seems to be very popular here. I remember my parents trying to catch the queen in some grandpa hives.
Reading all this I feel a little bad for never being particulary intrested in bees, my parents even met in beekeeping high school, but they ended up working different jobs.