Ordering fireworks on the Internet

I got an email from US Fireworks, telling me that it’s not too late to place my order for the 4th of July holiday.  And if I order $300 or more, they’ll pay the shipping!  That’s perhaps a good deal, considering that freight companies charge quite a bit to ship the darned things.  UPS and Federal Express won’t ship explosives at all, as far as I know.  I’m just a little bit (okay, a lot) disturbed at the thought of Little Johnny ordering fireworks over the Internet.