A month or two ago, I was in Rochester, starting my day. There was a CRJ parked next door (can't remember if it was PSA or Air Whiskey), surrounded by a firetruck, several official looking cars, and a handful of bystanders. I asked the gate agent what was up and he said that there was an "angry swarm of bees" stuck to the plane, right by the fueling panel and the fuel guy wouldn't go near it (can't blame him).
Apparently, they tried a "high speed taxi" up and down the runway to shoo them away. No dice on that, so they brought out a fire truck to hose it off. Sounds like nothing but a bad idea to me, but short of calling a bee keeper or exterminator, probably the only thing they could do.
We were parked right next door, downwind, so we were a little anxious about the potential outcome and wanted to leave ASAP before we had our own little bee problem. They hosed it off just as we were finishing boarding, and I did see one or two bees flying around outside the cockpit windows, and the FA reported a single bee in the cabin by the door, but no more than that.
Interesting way to start the day.