Once on MTA in Jersey we lost power a mile shy of the next station. We ended up getting out and walking to the station, then having a diesel take us to Hoboken as a re-direct since the mainline to Penn Station was out. There were folks in the tunnel under the Hudson when the power went out, and they were kept there for hours. That would not be too cool. I've seen parts of the subway where the only way to get out of the train would be the front of back as the walls on both sides were too close for a body like mine to fit between.