This reminds me of a similar story from a very different domain: The World Series of Poker. Some years back a high limit player went to the bathroom and hung hi

This reminds me of a similar story from a very different domain: The World Series of Poker. Some years back a high limit player went to the bathroom and hung his money belt on the inside of the stall door, did his business, then walked out forgetting the belt was in the stall. As soon as he realized his mistake he ran back in a panic because the belt contained over $700,000 in high denomination chips. By the time he got back the money was gone. The tournament director announced what had happened (leaving out most of the details) and asked for the person who found the money belt to return it. This sparked a lot of conversation at the event that year. Aside from the ethics of keeping the money there would be some big practical hurdles. High value casino chips are carefully tracked individually, so the issuing casino would almost certainly recognize any large chips from that haul as having been paid out to the original owner. I later heard second or third hand that the money belt was returned with all of the chips to the person who lost them, who in turn gave that person a sizable reward.