This is one of those scenarios where most people would keep walking, similar to this woman's husband.
In the video below you'll notice a man who is on the phone, talking to someone. He seems very frustrated at his current situation. Toward the beginning he throws his bag against the wall, then his cell phone. At that moment a woman, a man and a stroller pass by the man. She stops for a second contemplating to help out, her 'husband' appears to want to keep things moving forward.
THEN, the train begins to pull into the station... The guy runs toward the tracks and in that very same moment the woman runs back and does this: