Almost 20 years ago I was in North Dakota, working in a small town about 40 miles east of Bismarck. It wasn't big enough to have a store, but it did have a bar. (I think there's a state law that every town in ND with more than 10 houses is required to have a bar, but I'm not complaining. I was one of his best customers while I was there. There sure wasn't anything else to do.) Anyway, this bar had a small three-sided building beside it the owner used for a barbecue shed. It was a wood frame structure, with the corrugated fiberglass panels that are used for greenhouses. This small building had acquired a hornet nest up in one corner (the big round kind we used to see in cartoons). Anyway, one day the guy that owned the bar and a couple of his buddies had been sitting around drinking beer for several hours and decided that this was the day that the hornet nest had to go. So some brave soul got a can of wasp spray and soaked the nest down. Then one of them had another bright idea. "Let's set the nest on fire. That way we'll be sure to get them." They got them all right. The only problem is that none of them realized that wasp spray is highly flammable. While it's true that they got the hornets, they also burned the shed right down to the ground.