A British Internet prankster cemented his head inside a microwave oven in a bizarre stunt, which nearly suffocated him and took firefighters an hour to rescue him.

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The 22-year-old man from Wolverhampton put his head in a plastic bag inside the microwave before friends poured seven bags of Polyfilla inside.

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The group had intended to use the microwave as a mould, but the man got trapped and by the time emergency services arrived, the group had spent 90 minutes trying to rescue him.

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