Thank you for the explanation! I didn't connect all those pieces in the first part. Now it makes much more sense. Now I also understand the moral of the story. So many people try to save themselves but there are just a couple of people who help others (from bottom of their hearts, not just on the surface).

I will start paying attention and see if there are people disappearing from here.. they might be just going through the subway elevators! :)

One of the best stories that I've read in a long time...