So this Department of Water Resources representative stops at a Texas
Ranch and talks with an old rancher. He tells the rancher,
"I need to inspect your ranch for your water allocation."

The old rancher says, "Okay, but don't go in that field over there."

The Water representative says, "Mister, I have the authority of the
Federal Government with me.  See this card? This card means I am allowed
to go WHEREVER I WISH on any agricultural land. No questions asked or
answered.    Have I made myself clear?    Do you understand?"

The old rancher nods politely and goes about his chores.

Later, the old rancher hears loud screams and spies the Water Rep
Running for his life and close behind is the rancher's bull. The bull is
gaining with every step.

The Rep is clearly terrified, so the old rancher immediately throws down
his tools, runs to the fence and yells at the t of his lungs.....
 
"Your card! Show him your card!"