Yeap, we do.
I already told you about preparing nitroglycerine : that was during chemistry classes.
During physics classes, I once had to build a small nuclear engine. Then I again did a mistake and it did work : no BOOOOMM, just a FZZZLE...
Since that time, curiously, I no longer need a light to read a book in the dark. I sort of glimmer in the night ... a nice bluish light... <img src="/images/graemlins/grin.gif" alt="" />