How Long Can a Person Hang Upside-down Before Their Head Explodes?
By Conrad Spencer
The under-appreciated Chris Elliott series Get a Life featured an episode in which a roller coaster breaks down at the top of a loop, leaving Chris and the other passengers suspended upside down for the duration of the episode. It's a great plot for sitcom but, given backup generators and clever mechanical engineering, not something that I thought likely to happen in real life.
But I was wrong.