I did my good deed for the year. I primarily saved some big faceless credit card company some money, but I did save some poor schlub some hassle, and I have learned from a wise man, the quest to be hassle-free is divine. Well I was out on my habitual morning walk. After having fended of a psudo-attack from a stupid dog, I spotted a Discover card on the ground. I scooped it up, and when I got home called Discover and told them I found someone else's card. The Discover employee was not quite flabergasted, but he was surprised. So I destroyed the card and Discover will be contacting their cardholder.
You're welcome Mr. Slacum.