Geek + Too Much Free Time

Remember the kids you knew (or, yee-haw, babysat for) who liked nothing better than to go marching through the house, beating on a pan lid with a spoon?

Some of them still do -- only they've learned to solder and discovered solenoids. And circuit design and writing software and maybe -- just maybe -- a little bit about music, too. Don't go there if you've got a headache but in the right mood, it's pretty kewl.