Alone in the Dark
Six volunteers agreed to be shut inside a cell in a nuclear bunker, alone and in complete darkness for 48 hours for a BBC documentary. Easily the most potentially frightening part for me would be waking up:
Within half an hour of being locked up at the start of the experiment, all of the subjects lie down and go to sleep. But the real ordeal will begin when they wake up and find they have no idea what time it is.
The thought of that makes my skin crawl.
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