ave you ever made one of those mistakes that just kind of haunts you, the kind of mistake that lurks there in your memory waiting to pounce on you? You can just go along with your life and engage in ordinary activities and, when you get absorbed in what you are doing, you can even forget about that one big mistake that you made for a while. But then you come to a moment when the activity stops and you are alone with your thoughts and the memory is just waiting there for you. You wince, you may physically shudder and think to yourself, “I just cannot believe that I did that thing. How could I have been so dumb?”