A crusty old Command Sergeant Major just hired a new GS-7
 administrative assistant.

 One day while taking dictation, she noticed his fly was open.
 While leaving the room, she courteously said, "Oh by the way sir,
 did you know that your barracks door is open?  He did not
 understand her remark, but later on he happened to look down and
 saw that his zipper was open.  He decided to have some fun with his new
 employee.

 Calling her in, he asked, "By the way Miss Jones, when you saw my
 barracks door open, did you also see a soldier standing at
 attention?"  The secretary, who was quite witty replied, "Why no
 sir, all I saw was a little disabled veteran sitting on two duffel bags."