The Zipper

A man walked into a supermarket with his zipper down.
A lady cashier walked up to him and said, “Your barracks
door is open.”

Not a phrase that men normally use, he went on his
way looking a bit puzzled. When he was about done shopping,
a man came up and said, “Your fly is open. ” He zipped up and
finished his shopping.

At the checkout, he intentionally got in the line where the lady
was that told him about his “barracks door.” He was
planning to have a little fun with her, so when he reached the counter
he said, “When you saw my barracks door open, did you see a Marine
standing in there at attention?”

The lady (naturally smarter than the man) thought for a moment
and said “No, no I didn’t. All I saw was a disabled veteran sitting
on a couple of old duffel bags.”