This is scary if the uploader is to be believed. According to her, National Elevators (not sure which one, but a company by that name at least) deploys elevators with a mechanical glitch where if you call the elevator UP, and stand in the doorway until you hear the “nudge sound”, and then get in and push a floor going down instead, the elevator will start going up, then realize that you wanted to go down, and freefall about 5 feet. Yikes, has anybody been able to replicate this?