You're walking across the parking lot in a hurry to get to your car. You see a shiny coin on the floor. Do you stop to pick it up or do you leave it? If you're superstitious, most likely the little voice inside of you will insist you pick it up. If you're in a hurry, but you think every penny counts, you'll probably stop to pick it up. But, maybe you think it makes no difference whether you do or you don't. Maybe you think, "It's just a coin..." and...