On a tangent here...but, my parents have a stacked stone wall surrounding one side of their driveway. One summer when I was about 10, there was a very large colony of yellowjackets in the wall, they would crawl out of every crack and cervice, so I centralized the main entrance to the nest, took some fire works, poured some gasoline on the them and doused a string in some gas and fed it into the firecracker pile, lit it and KABOOM!!! it blew a small crack in one of the rocks and set a large fire in the cracks of the wall--yellowjackets went everywhere and some were on fire flying out of this thing! To this day 14 years later there are still some charred areas of the wall as a reminder of something so stupid.