Took the lawn mower for a walk this afternoon, starting in the front yard. Got stung again in the same area where I got stung a couple weeks ago. Never was sure what got me last time, but it was quite evident today; I'd stirred up a bunch of ground hornets, and they were not happy with me. Got me a couple more times before I got away to the driveway, where another one got me on the inner bicep. Decided to call it a day, and went inside to assess the damage. While standing in the kitchen, another one that had ridden in under my shirt got me on the belly. Five in all (both legs, both arms, and belly), but could have been worse, I guess. Man, do those little boogers hurt.