Steven McCormack was standing on his truck's foot plate Saturday when he slipped and fell, breaking a compressed air hose off an air reservoir that powered the truck's brakes.
He fell hard onto the brass fitting, which pierced his left buttock and started pumping air into his body.
"I felt the air rush into my body and I felt like it was going to explode from my foot," he told local media from his hospital bed in the town of Whakatane, on North Island's east coast.
"I was blowing up like a football," he said. "I had no choice but just to lay there, blowing up like a balloon."
Co-workers released a valve to stop the air pressure, and he was taken to a hospital. Doctors say the air inflated McCormack's body under his skin as it separated fat from muscle. He is expected to recover. Link -via J-Walk Blog