Old Duffel Bags

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 soldier 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.