Juan comes up to the Mexican border on his bicycle. He’s got two large bags over his shoulders.
The guard stops him and asks, “What’s in the bags?”
“Sand,” answers Juan.
The guard says, “We’ll just see about that – get off the bike.”
The guard then takes the bags, rips them open, empties them out and finds nothing in them but sand. He detains Juan overnight and has the sand analysed only to discover that there is nothing but pure sand in the bags.
The guard releases Juan, puts the sand into new bags, hefts them onto the man’s shoulders, and lets him cross the border.
A week later, the same thing happens. The guard asks, “What have you got?”
“Sand,” says Juan. The guard does his thorough examination and discovers that the bags contain nothing but sand. He gives the sand back to Juan, who crosses the border on his bicycle.
This sequence of events is repeated every week for three years. Finally, Juan stops showing up each week.
Years later the guard meets Juan in a cantina in Mexico.
“Hey, Buddy,” says the guard, “I know you must’ve been smuggling something all those years ago and it’s driving me crazy not knowing what. It’s all I think about. I can’t sleep. So just between you and me, what were you smuggling?”
Juan sips his beer and says, “Bicycles.”
I know it is a long way to Mexico, but, I think this one came from Nancy L.