Cyprus-Forum.com

[LENA]

Juan comes up to the Mexican border on his bicycle. He's got two large
> bags over his shoulders. The guard stops him and says, "What's in the
> bags?" "Sand," answered Juan. The guard says, "We'll just see about
> that. Get off the bike." The guard detains Juan overnight and has the
> sand analyzed, only to discover that there is nothing but pure sand in
> the bags. He releases Juan and lets him cross the border. A week later,
> the same thing happens. The guard asks, "What's in the bags?" "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, and
> Juan crosses the border on his bicycle. This sequence of events is
> repeated every day for three years. Finally, Juan doesn't show up one
> day and the guard meets him in a Cantina in Mexico. "Hey, Buddy," says
> the guard, "I know you are smuggling something. It's driving me crazy.
> It's all I think about...Just between you and me, what are you
> smuggling?" Juan sips his beer and says, "Bicycles."

[CBBB]

Obviously the American version of the Irish navvy with the wheelbarrows joke.

[Zorba]

obvously