...because he loves to dance!  He admits that he doesn't want money & he isn't homeless, so I can only assume that he has regular employment.  I wonder what his employers would think about this little stunt he is pulling.  I need to find out what train this is.  I couldn't tell by the train car from the film, but I did see that he got off at the 23rd Street station.  I'll have to see what train(s) have a stop there.  I'm not sure how I would have reacted to this in person, but watching this video has been the highlight of my Sunday morning!  I laughed so hard I think I woke up all of my neighbors!  Gosh, I love youtube.