I have always loved the cheerful, expository music that greets me whenever I regain consciousness. It sums up the story of my life in just a few bars, plus it’s catchy and easy to remember. I am supposed to pull into my driveway just as the music winds down so I can hop out and pose in the doorway with my family for about ten seconds. Today, however, there was another car in my wife’s spot in the driveway. I didn’t know how to handle this change.