You could become a self-employed chemist with a 'shop' in the basement... Depending on your skills, I might be interested in your wares...
If I had a nickel for every time someone said that...

Maybe I'll just start a mobile meth lab. JUST KIDDING! Now the feds will be watching me
I used to hang out in the print shop at my old job and watch what went on. Definitely requires more thought than I'm into right now. It was pretty neat to see how all that works. The potential for mischief!!!