Two years ago on a Saturday I received two 911 dispatch calls about bees that were coming out of the sky and stinging people at a particular location. A lady and her husband arriving home after breakfast stepped out of their vehicle and both having been stung several times ran down the block and entered a neighbor's house who had also been stung by bees coming from the sky.
He was the other 911 call.
I knocked on his door and he and the husband & wife were in that house describing the event to me.
She asked if I would't mind placing her keys in her purse and placing them on the seat of her car after picking them up off the sidewalk.
Long story short after surveying the area and having bees come out of the sky and sting me, I discovered a guy had tried spraying a swarm of bees that were on the back of a military trailer in his back yard with a fire extinguisher.
The closer I got to that house the crazier it got and the meaner the bees were. Three feet from the swarm on the ground was the fire extinguisher.