Domestic terrorist (raises hand). My best friend and I discovered "bolt bombs" made by scraping off strike anywhere matches and putting them between two bolts with a nut in the middle. You just fill up the space and screw them together real tight. When you throw them on the ground they go "bang"... Well we lived near a railroad, didn't we? The rest is history. That little assembly weighed about a pound and literally blew the nut into two (or more) pieces. One hit my friend and spun him around and left a bruise he may still have today. Could have killed him if it had hit him in the head. But by the grace of God ... We never did that one again...