A friend of mine saw something like that at the Forrest Hills station in Queens around 2 or 3 AM. It was a pretty hot story too. *Fans self* I don't know how they got away with it though, it seems like no matter the time of day, there's someone around in NY. But he mentioned the station had a slight curve, and everyone was more towards the middle, and they were being naughty at the very front of the station.