Have you ever looked back on your life and said “Oh, that changed everything”?  One of those moments happened to me.  It was when our new Astronaut class first got together in 1978.  There were thirty-five of us and most of us didn’t know each other yet.  A reception was planned and we all arrived at the venue.  As I walked in, I noticed two very good-looking fellows down the hallway.  One was blonde and the other dark-haired.  As I got closer,...