Liver and Cheese.

A Border Patrol agent is on duty. He spots two Mexicans and stopsthem. 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 thewords liver and cheese in a sentence." So, the first guy says, "I made a liver and cheese sandwich forlunch." The agent says, "That was good, you can go. What about you?" he asksthe second guy.He says, "Liver alone, cheese mine."