An Army ranger was deployed to Afghanistan. While he
was there he received  a letter from his girlfriend. 
In the letter she explained that she had  slept with
two guys while he had been gone, she wanted to break
up and she  wanted pictures of herself back. So the
Ranger does what any squared away Ranger would do.
He went around to his buddies and collected all the
unwanted photos of women he could find. He then mailed
about 25 pictures to his girlfriend with the following
note: “I’m sorry I can’t remember which one you are,
but please take the one  that belongs to you and send
the rest back. Thank you.”