Bob joined in the army.
After 4 months of being in the army, his girlfriend sent him a letter saying she’d slept with 2 guys since he’d left and wanted to break-up and gor hime to return all the pictures he had of her.
So Bob did what any other American would do.
He went around to all his army buddies and asked for pictures of girls they wouldn’t mind giving up. He then took all the pictures, some decent, some X-rated, and put them in a big envelope to send to his girlfriend with a note saying “I don’t remember you. Please remove your pictures and send the rest back.”