By the way, when a bee decides to come after you, I'm relieved when they choose my hair. It takes them a bit to get to the point of being able to sting you, and you know exactly where they are. Simply slap them like a mosquito really fast. The aggressive bee is then dispatched, and you will rarely get stung on the hand or the scalp. Also less guts in your hair than you might think. Up until they land in my hair, they are totally random, and you could get stung anywhere. Not all bees that come after you will end up stinging you. I will wave one off from my face, but pretty much anywhere else, I don't bother. Many just move on, or then choose my hair, and then I've got them. Pop! - no more aggressive bee! I win about 98% of such exchanges.
Obviously frantic behavior provokes further attack. So swatting wildly and/or reacting wildly will increase your chances of getting stung. I was probably attacked 7 or 8 times yesterday during my 3 hour inspection, I only had to dispatch 2. The others never followed through with their attack. The one that did finally get me in the last 5 minutes, was a total hit and run on the forehead, no warning whatsoever. I had no less than 10,000 bees in the air during that last box (my strongest, and the entomologist was standing in their flight path), and I only had two or three that decided to come after me!
I did have a brief discussion with the entomologist regarding the many beekeepers that he sees, and stings and aggression. His comment was that the most problems he runs into, when he feels the need to suit all the way up, is when people don't use smoke. Some simply don't believe in using smoke, and there is a marked difference in the behavior of the bees. The other thing that he mentioned was that some that have complained that they have mean bees, simply exercise very little finess while working their bees. They move fast and bang, slam, knock, bonk, and etc. while working their bees. I've learned that slow smooth, quiet movements provokes less anger. Basically respect the bees and try not to be a bull in a china closet, and you will have a better experience.