Originally Posted by MicShazam

They are going to walk all over everything anyway. I'm not too concerned about what they've stepped in. How many nanograms of dirt could there be on the foot of a fly?
Some people keep their shoes on when going inside. That's thousands of times worse. I would like to swat people like that.

Ah ok, I know what a bluebottle is now. I don't like them. For some reason, I think of their smaller cousins as an entirely different thing.