I was weed eating near an old stand a couple of weeks ago. Grabbed the old wooden ladder to move it and heard a weird sound like crunching paper, then the buzzing started. Figured it out and turned and ran, dropping the weed eater in the process. One got me on the back when I was about 20 yards away.
I had a little bit of wasp spray left, just enough to spray the 3 or 4 on my weed eater and reclaim it. Went back yesterday at first light with a new can. Soaked the nest, knocked it down, soaked again, stomped on it a couple times and soaked again. A couple tried to escape but think I got them all.
The spot of the sting turned red, with about a 3 inch circle around it. Itched like crazy a couple days later. But had no arthritis pain at all for about the next week!