When you hear the phrase, “use your head” you are typically being told to think. There are other uses of the head that are quite unwise. For example, trying to clear a soccer ball away from another player rushing in on the attack when you are a step too late. Unfortunately that’s exactly what I tried today. My head just happened to get in the way of the shoulder of the onrushing soccer player when we both jumped to try and win the ball. It was really no contest as his shoulder won, leaving a nice inch long...