There was a captain of a ship who carried around a mysterious black box. Despite repeated questions from his crew, he refused to tell anyone what was inside the box. Years went by, and the mystery of the box grew and grew. It was all the crew could talk about. What was in that mysterious black box?
One day a big storm quickly approached. The wind howled, and the ship was tossed on huge waves. Suddenly, a wave washed across the deck and swept the captain overboard. He disappeared from view and was never seen again.
As soon as the storm passed, a sailor went to the captain's cabin and retrieved the box. The entire crew circled around as he opened it and removed the only contents, a small piece of paper.
On the paper was written, "Starboard is right, port is left."
When asked for her occupation, a woman charged with a traffic violation said she was a school teacher.
The judge rose from the bench. "Madam, I have waited years for a school teacher to appear before this court," he smiled with delight. "Now sit down at that table and write 'I will not pass through a red light' five hundred times!"