An internet "prankster" had to be freed by firefighters after cementing his head inside a microwave oven.
West Midlands Fire Service said it took an hour to free the man after they were called to a house in Fordhouses, Wolverhampton.
Friends had managed to feed an air tube into the 22-year-old's mouth to help him breathe, the service said.
Watch Commander Shaun Dakin said the man "could quite easily have suffocated or have been seriously injured".
Mr Dakin said: "He and a group of friends had mixed seven bags of Polyfilla which they then poured around his head, which was protected by a plastic bag inside the microwave.
"The oven was being used as a mould and wasn't plugged in. The mixture quickly set hard and, by the time we were called, they'd already been trying to free him for an hour and a half."
http://www.bbc.com/news/uk-england-birmingham-42271150