I was at this guys farm house one time, and in the kitchen they had several fly traps, the ones that you hang and pull down to expose a sticky surfce. Anyway, every trap had every possible exposed surfce covered by a fly, and in some spots it looked like they were two or three deep.
Even as full as they were they didn't take them down, like they were some kind of redneck decoration.
Not really a joke, but I'll never forget that.