A Colorado teen had the bright idea to churn smaller fireworks through a coffee grinder and then rig 'em all up to create one super big firework. It didn't quite work out like that. Instead, the coffee grinder exploded in front of him.
The 19-year-old is currently recovering from serious burns that he suffered during the mishap. Luckily, he's still alive. The Fire Marshal postulates that the electric coffee grinder probably caused enough friction to cause the explosion. Yup, sounds about right. [Denver Post via Fark]