I found $221 of folded cash on my office hallway today. Two $100 bills, a $20 bill, and a $1 bill. Without thinking, I asked people if it were their's, and one person said it could be his since he misplaced some money. I didn't think twice, but since there was another co-worker, I told him to bear witness that I gave it to him.
An hour or two later, the person that actually lost the money came looking for it, and he got his money back.
On hindsight, I should have written an e-mail to everyone and if they came to me with the correct amount that was missing, I'd give it to them. Oh well, I'm a dumbass.