Guy sits down at a Mexican bar. Next guy elbows him, says, "Hey! Do you know Pancho Villa?"
Guy says, "Do I know Pancho Villa? Let me tell you a story.
"One day, many years ago, I was walking in the desert. The road was straight as far as I could see behind, and as far as I could see ahead. I saw, in the distance, a tiny speck. Hours later, I could see it was a man on a big white horse. When he got to me, he stopped, and I stopped, and he said, 'Do you know who I am?'
"I said, 'No, Señor, I do not know who you are.'
"He said, 'I am Pancho Villa,' and he pulled out his gun, and he shot my hat right off my head. That startled me. It must have startled his horse, too, because it dropped some road apples. He saw me looking, and he became very angry. He pointed his gun at me, and he said, 'I am Pancho Villa, and you will eat those road apples.'
"What could I do? He had the gun. I went down on my knees, and I ate the road apples.
"Then, a snake came out of the bushes. Pancho Villa's big white horse reared up. Pancho Villa got control of his horse, but he dropped his gun. I was on the ground, and I got his gun. I stood up, and I pointed it at him, and I said, 'You are Pancho Villa, and now you will eat the road apples.'
"What could he do? I had the gun. He got off his big white horse, and went down on his knees, he ate the road apples. I got on his big white horse, and I rode off down the road.
"So, you ask me, Señor: 'Do I know Pancho Villa?' I ate lunch with Pancho Villa."