[dotti34]

In January, while crossing a border on his bicycle, a man was stopped by Paul, a security guard, who pointed to two sacks the man had on his shoulders.
"What's in the bags?" asked the guard.
"Sand," replied the cyclist.
"Get them off - we'll take a look," said the guard.

The cyclist did as he was told, emptied the bags, and proving they contained nothing but sand, reloaded the bags, put them on his shoulders and continued across the border.

Two weeks later, the same thing happened. Again Paul the security guard demanded to see the two bags, which again contained nothing but sand.
This went on every week for months, until one day the cyclist with the sand bags failed to appear.

A few days later, the guard happened to meet the cyclist downtown. "Say friend, you sure had us crazy", said the guard. "We knew you were smuggling something across the border. I won't say a word - but what is it?"

"Bicycles."