I like to play a game with my son, Joseph. We sit on a bench in touristy Old Town, Alexandria, Va., and we’re not allowed to get up until we see a dozen pairs of Crocs. It usually doesn’t take long. But the other day we were stuck at eight after a few minutes, and I was getting a little concerned. Just then my boy leaned over and said, “Don’t worry, Dad. A family of dorks will come along any minute.”