One for Camstone ...

My job is in the Aerospace Industry, and it's always
been a challenge to explain what kind of work I do.
At one gathering, I tried several unsuccessful
explanations before deciding to be as generic as
possible. When the subject came up while I was
talking with a group of guys, I replied simply,
"Defense Contractor."
 
The men nodded, and as the conversation went on, I
silently declared victory to myself. Then, one of
them turned to me and asked, "So, what do you do
mainly, chain-link?"