A train conductor announced some words of wisdom today: “Don’t push a stroller into a closing train door”.
Train doors in NYC subway cars close with a tremendous amount of force and don’t have a sensor that would keep them open if somebody got stuck. You are at the mercy of a conductor, who usually rapidly opens and closes the door, hitting you a couple of times more before you can enter the car. Jumping into closing train doors is a main event in NYC Olympics though.
You can easily recognize a person “kissed” by a subway door – the rubber “lips” leave black marks on skin and clothes.
It’s interesting to note that the announcement probably was made because somebody actually tried to do this with a baby carriage. That’s Darwin Award material.