I work with aeronautical maintenance logistics and production. But when I get home, I go to my "geek lab" as my wife calls it and create awesome (my wife might argue) contraptions with my 3d printer, solder my own circuits, program an arduino board, slap them together just long enough to make it work before I'm on to my next project.

I have my pilot license, and like to just tool around or visit new destinations for that "$100 hamburger" when I get the time.