It’s been a long day at work. You pick up your children from day care or school and they are fighting with each other and screaming louder than the music on your radio. You are tired, hungry, and at your wits' end. Something catches your eye and you look in your rear view mirror, and all you see are red and blue lights behind you. Your emotions could run from your heart racing to the inevitable question of “what did I do wrong?” It could also be that the lights behind you are not for you, but are just trying to get you to move over.