In 1994, 17-year-old Boy Scout David Hahn decided to build a nuclear breeder reactor in his backyard shed in Michigan. He gathered radioactive material from smoke detectors, camping lanterns, clocks and gunsights, hoping to transform them into fissionable isotopes in a hollowed-out block of lead.

He should have stuck to homework. The experiment started to emit toxic levels of radiation, and he was trying to dismantle it when the police found him and brought in the FBI and the Nuclear Regulatory Commission. To his mother’s dismay, her property was declared a Superfund hazardous materials cleanup site, and the shed was moved to Utah and buried as low-level radioactive waste.

On the bright side, Hahn made Eagle Scout.