I told him if a bee hangs around, and seems like it is going to bomb him, to bow his head, shut his eyes, breathe gently with his hands over his mouth and nose, and stand very still, and it will go away as a rule. If a bee persists you can open your eyes a little, and slowly walk away. They hone in on the carbon dioxide on our breath, to find their target.
I do need to tell him that no one ever won a boxing match with a bee. If a bee comes straight at you, often there is nothing you can do. Just get the sting out as fast as you can. Regards Wilma