I love saying, "Air Force" after my standard answers of "I am in the military" or "Government work" to the questions of "What do you do?"
The unwavering reactions I get (Air Force, hahaha, AF sucks, you're not really in the military, etc) are always waaaaaaayyyyy funnier to the people with me, mainly because I usually totally agree with their bashing and badassness for as long as I possibly can.
It's always great.
I usually get asked what plane I fly. I did get a girl to legitimately believe I was a door gunner on the space shuttle a couple weeks ago. Told her we flew patrols to protect our satellites from the Chinese. I made up this whole intricate spacesuit/retention system that I wore to keep me connected to the shuttle. I love 19-year-olds.