US Navy, 1977-1981. Aerographer's Mate 2nd Class (E5). After boot camp and "A" school, I spent the next 3 1/2 years at Fleet Numerical Oceanography Center in Monterey, CA.
The Navy got me started on the career I still have today, it got me out to California where I settled, and I met my wife. I'd have to say I grew up the day I set foot in boot camp. All in all, one of the smartest things I've ever done.