At the US/Mexico border a guard sees a man crossing into the United States. The man is riding a bicycle and has a box balanced on the handlebars. The guard pulls the man aside, tells him to get off his bicycle and opens the box, but all he finds inside is sand.
This goes on every day for two months: the man comes across the border on his bicycle with a box balanced between the handlebars, and every day they open the box but find nothing but sand.
One day, the guard sees the man at a store and says, “Look buddy, you drove us crazy. Everyday for 2 months you came in on your bicycle with that box of sand…what were you smuggling?” The man says, “Bicycles.”
That’s really thinking outside the box!