Turns out this isn't true. A Boston subway station had a pretty grim escalator failure a month or two ago[0], where the escalator broke and the stairs started t

Turns out this isn't true. A Boston subway station had a pretty grim escalator failure a month or two ago[0], where the escalator broke and the stairs started to free-fall backwards piling people at the bottom. [0] https://www.nbcboston.com/news/local/mbta-investigates-back-bay-escalator-malfunction-that-injured-9/2501749/ https://www.nbcboston.com/news/local/mbta-investigates-back-...