When I was 16 a friend in the Air force sent me a French post card from North Africa. (Your imagination should kick in here) and I put it in my wallet for show and tell.
One day I was wresting with a neighbor's dog and I lost my wallet. Had no idea where it was until my Mother informed me that the neighbor had returned it. Meanwhile, it had been rained on, so she wanted to do me a favor by drying out the contents! I have never been more embarrassed in my life.