Late one night, a policeman observed a lone man peering intently at the ground underneath a street lamp in a parking lot. The policeman walks up to the lone man and the following dialog ensues.

• Policeman: Sir, what are you doing?
• Lone Man: I'm looking for my car keys.
• Policeman: Exactly where did you drop them?
• Lone Man: Over there, by my car.
• Policeman: Then why are you looking for them here?
• Lone Man: Because the light is so much better over here! </ul>