absolutely.
I do believe that what goes around comes around...call it Karma, call it what you want...it still ticks me off to this day that I lost this really cool bag and wallet in high school and no one ever turned it into lost and found. I didnt care about what little money was in it, but I had a few picutres, and really liked the wallet and bag,...and they were just cheap, but they were MINE.
now if I found a $20 bill on the side of the road...no people around and no place to really figure where it came from? yes I would keep it. but not a wallet...and if I found that money on the floor of a store I would ask whose it was (i have done that before). I would drop the wallet at the police station...I did my part