Casey (who sent us the recluse spider bite post a while ago) is doing it again: this time, I'll post this up as a public notice on the dangers of playing with fireworks. I have a cousin who could have easily lost his foot in a fireworks accident.
Please leave the fireworks extravaganza to the professionals: Link (Warning: graphic images of wounds) - Thanks Casey!
As an adult, I still don't have any desire to play with them. I enjoy watching professional shows, but I guess my dad's teachings really rubbed in. It just seems like too easy (and stupid) a way to hurt yourself. Then again, it could be Darwin's law in action.
Turns out, a 10 inch shell has plenty enough velocity to rip clean through one side of a steel shipping container, and then blow up on the inside.