A village man was pushing his new bicycle. There was a sack on the bicycle. He came to the border and the police stopped him to search.
"You must be a smuggler", said the police. "No o", replied the man. "Then I will search you", said the police.
He searched the village man and found nothing. He searched the sack, but it was only full of white sand.
He searched the sand but nothing special. Just sand.
"OK, pass." said the police. And he allowed the man go.
The next day the man came by again and the same routine was played. And once again the man passed.
After 3 months, the same thing had been happening Daily.
The police felt an urge to ask again. And he called the man aside. And whispered into his ear, "Mr man, I just feel you are up to something. You must be smuggling. But I cannot find out exactly. Tell me, man-to-man, what are you really smuggling"?

The man answered, "Bicycles"