I used to work in a game specialty shop (I was a key holder, but I wasn't getting paid), it was fun, though not as fun as the comic book store, and the arcade was my dream job (who says you can't fulfill all of your dreams in one lifetime?). I would have to say that I picked up some DnD knowledge along the way (though currently I'd like to play either Pathfinder or Deathwatch. Or Redline since it's the closest to a D20 Mad Max setting I can find).