If you drop your phone on the train tracks, go buy a new phone. You'll live. If you go after your phone on the train tracks, you might not.
This happened in Sao Paulo, Brazil. How the woman got out before she was, y'know, squished by the train, is beyond me. Props to the security guard that helped pull her off the track. Also, kudos to the guy that filmed this instead of trying to help get the girl off the tracks.
He's the real hero here.