Active Duty Navy. I have served aboard 2 Trident submarines as a Sonar Tech. I now am an Instructor at the Navy Dive School in Panama City, FL. Last weekend I hit my 9 year mark and am getting out in 50 days.
The only thing I have used from my real life military experience is the ability to make things sound much better than they are. ( IE: Janitor = Custodial Engineer) Which is a big help when you are trying to recruit.