What's your best "military-related joke" or "amusing military story?"

There was a group of Officers stationed in Germany and they decided to take leave and travel across Germany on the train and visit a historic area.  The Officers arrived the train station and each one approached the ticket counter and purchased their own ticket.  While waiting for the train they saw a group of NCOs arrive and only one of them approached the ticket counter and purchased a ticket.  The officers were in wonderment and talked about the NCOs and were trying to figure out what they were up to.  The train arrived and the Officers and all of the NCOs boarded the train.  After a few minutes of the train departing the conductor was making his way through the cars checking tickets.  The NCOs, noticing the conductor approaching, get up and run into the bathroom.  The conductor checked all of the Officers' tickets then moves to the back of the car ang knocks on the bathroom door and says "Ticket please".  A ticket them appeared from under the door and the conductor checked it and slid it back under the door and moved on to the next car.  The Officers were amazed at the events that transpired and decided that upon their return they would utilize the same plan that the NCOs used. 

A few days had passed and the Officers leave was ending and they arrived at the train station.  Only one of the Officers approached the ticket booth and purchased a ticket and returned to his group.  A few moments later the NCOs arrived at the train station and not one of them approached the ticket booth to purchase a ticket.  The Officers were totally confused and could not figure out what the NCOs were up to.  As the train arrived all of the Officers and all of the NCOs had boarded the train.  After the train departed the station they noticed the conductor checking tickets and on their way to their car.  The Officers and NCOs noticing this left their seats and rushed to the bathrooms except for one NCO.  The Officers were in one bathroom and the NCOs were in the other.  The remaining NCO approached the bathroom the Officers were in and knocked on the door and said "ticket please".