I was recently stung by a wasp. Wasn't sure what it was, but it was like a hot needle in my elbow. I tell you, I smashed those little suckers as soon as I found the nest. The pain didn't last too long, but I still have a bump on my elbow from the bite. Has to had been a couple weeks already. Not an experience I want to repeat. Now, I need to find someone to clean my windows, they are looking bad. Maybe when it cools off. :-)