"There is a story of a man on all fours under a street lamp, searching for something. A policeman passing by asked what he was doing. “Looking for my car keys,” replied the man, who appeared slightly drunk. “Did you drop them here?” inquired the officer. “No,” answered the man, “I dropped them in the alley.” Seeing the policeman’s baffled expression, the man hastened to explain, “But the light is much better here."