D'oh

I don't know what station or what time. The video was posted June 7.

via Youtube user famercado123

It was rush hour, and the Metro was crowded as hell. Then it stopped in a station and a voice over the speakers said we should get out because there was a "medical emergency" with a passenger. Additionally, they told us to go upstairs. Around 500 people over crowded the "never working properly" escalators. When almost everyone was upstairs, an announcement said that the problem was "resolved" and that the train was going to return to service.

An then what is shown in the video happened. The majority of people went to the escalators that were going down, but a group of people decided to "outsmart" the others and go back faster by turning around and going down in the escalators that were going up. This could go wrong in so many ways, just imagine that somebody fell in the middle of the way...