A London policeman gave a woman a ticket for making an illegal turn. When the woman protested that there was no sign prohibiting the turn, the policeman pointed to one that was bent out of shape and difficult to see from the road. Furious, the woman decided to appeal by going to court. Finally, the day of her hearing arrived, and she could hardly wait to speak her piece. But she had just begun to tell her side of the story when the magistrate stopped her and summarily ruled in her favor.
A version of this article appeared in the January 2003 issue of Harvard Business Review.