Damon Beres, an editor for The Atlantic, shares this image of an elevator. He doesn't share its location, but various people on reddit have posted similar photos of elevator control panels with buttons marked yes and no.
Redditor /u/allysx3 explains that New York City's safety code for elevators includes options for people with disabilities in emergency situations. After pushing the emergency button, remote operators can ask people in the elevator yes or no questions through a speaker, which are answered with the appropriate buttons.
-via Super Punch
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