A 62-year-old Independence Township (Michigan) man hosting an outdoor winter party in his backyard was rushed to the hospital Sunday night after the explosive backpack he rigged to power him on a sled exploded, police said.

The man is thought to have constructed the backpack from a used automotive muffler, which he filled with gasoline and gunpowder, “trying to get a rocket-launch effect,” (police) said…Detroit Free Press

Via Nancy Nall , who dedicates this story “to any­one who’s ever had a rel­a­tive whose last words were `Hey ever’body, watch this.’”