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A man has been knocked out cold by his friend after he challenged him to a dangerous dare which sees him fall motionless to the floor.
Jordan Sharpe tempts fate by telling his pal: "Guarantee you, I don't go down."
A man, who hasn't been identified, then delivers a ferocious right hook which sends pal Jordan sprawling across a bottle-strewn table.
The clip - which has been viewed and retweeted thousands of times - was filmed in Jordan's flat in Dumbarton, in Scotland on Saturday night after a drunken session.
Jordan was out cold for two to three minutes, according to friends, but is apparently none the worse for his experience as a human punchbag.
The 19-second clip was filmed and posted by Kevin McElroy, 28, who captioned it with Jordan's ill-chosen "last" words.