A Wyoming rancher from Thermopolis got pulled over by a state trooper for speeding, and the trooper started to lecture the rancher about his speed and, in general, began to throw his weight around to try to make the rancher uncomfortable.

Finally, the trooper got around to writing out the ticket, and as he was doing that he kept swatting at some flies that were buzzing around his head. The rancher said, "Having some problems with circle flies there, are ya?"

The trooper stopped writing the ticket and said—"Well yeah, if that's what they are—I never heard of circle flies." So the rancher says, "Well, circle flies are common on ranches around here. They're called circle flies because they're almost always found circling around the rear end of a horse."

The trooper says, "Oh," and goes back to writing the ticket.

Then after a minute he stops and says, "Hey… wait a minute, are you calling me a horse's ass?"

The rancher says, "Oh no, Officer. I have too much respect for law enforcement and police officers to even think about calling you a horse's ass."

The trooper says, "Well, that's a good thing," and goes back to writing the ticket.

After a long pause, the rancher says, "Hard to fool them flies though."