I like watching explosives just as much as the next guy in town, but seriously, what were you thinking? A pipe bomb? I don't have enough fingers and toes to name the conflicts that have happened and are happening in different countries around the world where these weapons are used. I don't think I'd whine about getting 'mugged' for $15 worth of materials considering you probably should have been arrested and thrown in jail. I agree 100% with Slannfrog, you're lucky. Any time I've seen kids mix with anything explosive (from dry ice to cherry bombs and worse) I've always seen them or some innocent bystander get hurt.
Sorry if I come across opinionated, it's not intended to step on anyone elses point of view.