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SHERIDAN, Colo. (AP) - A couple planning to set off their own Super Bowl pyrotechnics accidentally blew up their own car while transporting a balloon filled with an explosive gas.
Norman Frey, 46, and his companion suffered busted eardrums in the explosion Sunday as they drove to a Super Bowl party, according to the Arapahoe County sheriff.
The balloon had been filled with acetylene, a flammable gas used in welding, and it had rolled across the back seat, possibly causing static electricity that ignited the gas.
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