If you have vertigo, you might not want to get on this elevator.   Corporate pranksters set out to prove their new computer monitors were so realistic, they could fool every unsuspecting soul that stepped aboard. Watch as people jump, shriek and grab for anything to hold on for dear life.

Here's how they did it: LG Electronics  combined nine of its new IPS monitors, arranged them in a three-by-three grid, and fixed them to a floor of an elevator.  Nobody was physically harmed.  But lots of people had their primal fight-or-flight response tested.

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