For one unfortunate woman, a friendly competition ended before it could get started thanks to an embarrassing fall.
In the video below, it appears that a pair of co-workers, or perhaps students, have set up a competition to see who can roll the furthest in a chair. The first guy to go scores a solid distance. But when his friend tries to match him, she falls flat on her back.
Perhaps this was karma for, you know, participating in a chair race at work.