The dilemma

You are three steps up. The emergency stop button is on the wall to your right, just in reach. The man at the bottom is not getting up, and more people stumble onto the pile every moment. There is no time to think it through.

Your options

1. Slam the emergency stop button and brace to pull people back.
2. Push down toward the fallen man and try to clear him.
3. You grip the rail, frozen, as the crowd presses on.