Good idea for a thread. Here is my contribution:
It happened yesterday, a real life illustration of what criminals think about gun laws.
While working in a gun shop.....
Female customer: Do you have a bulletin board?
FC: Like a board where people are selling guns.
Me: No, are you looking for a used gun?
Me: We have a used gun case over there.
FC: Oh... no, I wouldn't qualify....and I am getting it for somebody else.