Bob and Jesse were haulin cattle down the backroads and Bob had the pedal to the metal, when the sheriff pulled them over.
Jesse got out and was standing by the officer when he noticed a fly circling the sheriffs head. Jesse asked "do you know what kind of fly that is?" The sheriff says no and keeps writing the ticket. Jesse says " thats a cirlce fly", the cop says, um, ok. Jesse says " do you know where circle flies live"? the cop says no and Jesse says "they live in horses arses", the cop stops writing and exclaims "are you callin me a horses arse?" Jesse says "no, but its hard to fool a circle fly