Oh dear I remember playing around with explosives as a kid, chlorine, break fluid, tin foil, that kinda thing. Then we started playing around with acetone and peroxide, trying to make a touch explosive. I count my blessings that we didn't do it correctly, as I absolutely would have lost a hand. I don't know how you can explain to some people the risks associated with this kinda stuff, the book we were using called the touch explosive "Mother of Satan". If that didn't dissuade us...