Here's my "Parking Spot Theory": Let's say you're driving around, looking for a parking spot and you can't find one. You drive around the block again and, still, nothing. You look up ahead at the other cars circling the block and no one is getting a parking spot. Frustration builds. Then, suddenly, a spot opens up and the guy ahead of you pulls into it. The first thing you think is, "Damn, that could've been my parking spot." Disappointment. Anger.