A farmer gets pulled over by a state trooper for speeding. The trooper lectures the farmer about his speed and generally throws his weight around to make the farmer uncomfortable. Finally, the trooper starts writing the ticket, and as he is doing so he keeps swatting at some flies circling his head.
Having trouble with the circle flies there, are ya?” the farmer says.
The trooper stops writing the ticket and says, “Well, yeah, if that’s what they are. I never heard of circle flies.”
So the farmer says, “Well, circle flies are common on farms. See, they’re called circle flies because they’re almost always found circling the back end of a horse.”
The trooper says, “Oh,” and goes back to writing the ticket. After a minute he stops and says, “Hey… wait a minute. Are you trying to call me a horse’s ass?”
“Oh no, officer,” says the farmer. “I have too much respect for law enforcement to even think about calling you a horse’s ass.”
“Well, that’s a good thing,” the trooper says, and goes back to writing the tickets.
After a long pause the farmer says, “Hard to fool them flies, though.”