Practical joke on his ex-girlfriend
The soldier serving in Hong Kong was annoyed and upset when his girl wrote breaking off their engagement and asking for her photograph back.
He went out and collected from his friends all the unwanted photographs of women that he could find, bundled them all together and sent them back with a note saying, "I regret to inform you that I cannot remember which one is you -- please keep your photo and return the others."
:oo
:))