Government Inspector

A cocky government inspector stopped at a farm and talked with an old farmer. He told the farmer, "I need to inspect your farm."
The old farmer said "OK, but don't go in that field."
The Agriculture representative said "I have the authority of the Government with me. See this card? I am allowed to go wherever I wish on agricultural land."
So the old farmer went about his farm chores.

Later, he heard screams and saw the Inspector running for the fence, and close behind was the farmer's prize bull. The bull was madder than a nest full of hornets and the bull was gaining on the Inspector at every step.
The old farmer called out, "Show him your card!!"