yesterday while showing a fellow his area on our lease he said "can you look at my back, I think I got into some ants or something as they are stinging my back" he turned around and had more yellow jackets on his back than I have ever seen in my life, you could not see his shirt for the varmints. I knocked them off, and we ran, they chased us about an 1/8 of a mile back to our trucks and got me 4 times! He had 20 stings at last count. Viscious varmints, we must have disturbed a significant nest! 24 hours latter and they still are smarting!!