A Border Patrol agent is on duty. He spots two Mexicans and stops
them. They show him their papers, but he thinks they are phony.
He tells them, "Okay, I have a test for you. I want you to use the
words liver and cheese in a sentence."
So, the first guy says, "I made a liver and cheese sandwich for
The agent says, "That was good, you can go. What about you?" he asks
the second guy.
He says, "Liver alone, cheese mine."