In fact, I ought to have missed it.  The purple line was already at the platform by the time I got to the escalator.  I ran down, taking the steps two at a time.  As soon as I got to the platform, the subway doors shut.  I stood there looking in at the crowd of people, who were looking back at me.  I could see the looks on their faces, filled with empathy that despite my best efforts, I would be late to my destination.

Then something unexpected happened.  The subway door opened.  How did that happen?  Did the conductor see me do my best Indiana Jones maneuvers in an attempt to catch the train?  If so, bless your heart, dear conductor.  My boss appreciates it too.