I'm an engineer in the solar industry, and help run a small workshop cooperative in Boulder, CO. I'm fond of taking things apart, fixing things that are broken, and doing things that everyone says you can't do.
Niels Bohr said, "An expert is a person who has found out by his own painful experience all the mistakes that one can make in a very narrow field." - I can proudly say that in a number of fields I am well on my way.