Sled man's rocket-contraption backpack explodes on him

Police have yet to release the man's name, denying a Michigan man unrealized internet fame. All we know is that he's 62-years-old and every year he throws an awesome outdoor party in Independence where he does some sort of Jack Ass style stunt.
This year, our hero filled a used automotive muffler with gasoline and gunpowder, rigged the muffler to his backpack, and then hopped on a sled. An accomplice lit the wick of this genius contraption. Oakland County Undersheriff Mike McCabe told the Detroit Free Press that the man was "trying to get a rocket-launch effect."
Instead he received a bomb effect. The muffler exploded, burning our hero over 18% of his body. Police confiscated the orange plastic sled (pictured), which surely belongs protected in a museum somewhere.
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