A man walked into a supermarket with his zipper down, and his fly wide
open. A lady cashier walked up to him and said, "Your barracks door is
open." This is not a phrase men normally use, so 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, and remembering
what the cashier had told him, finally understood. He then intentionally
got in the line to check out where the lady was that told him about his
"barracks door."
He was planning to have a little fun with her. When he reached
her counter he said, "When you saw my barracks door open did you see a
soldier standing in there at attention?"
The lady thought for a moment and said, "No, no I didn't. All I
saw was a disabled veteran sitting on two duffel bags."