Underrated horrible thing: That moment of panic as you dig through your pockets looking for an important personal belonging.
This is usually a frenzied search for a wallet, cell phone or house keys. When you're an NFL head coach, there's one more thing you always want to have on your person: the red challenge flag.
This is a perfect illustration of the dangers of wearing a bulky jacket over your clothes. The jump in pockets can be extremely troublesome.