Interesting ethical question:
I plopped down a $10 matchplay and a $10 bill on the Pass Line at a casino that will remain nameless. The shooter rolled an immediate come-out eleven. Winner winner buffet dinner! The dealer paid me, I scooped everything up, tipped the dealers $1, and walked away. I met my nephew who was playing the slots, and we went over to the cashier to cash in my chips. Only then did I notice that I had SIX red chips, not four...AND the $10 bill...and I still had the coupon!
Now, obviously, I should have gotten paid four red chips, and they should have taken the matchplay coupon. They had plenty of time to fix the error, though, since I stuck around long enough to throw them a dollar--so it seems like they didn't realize their mistake (or, quite possibly, the dollar toke kept them from acknowledging it?). I didn't really know what to do--going back to the table and handing them $10 and saying, "Hey, you overpaid me five minutes ago" seemed like it would feel really weird. I thought of going back and betting that $10 on a two-way hardway or something, but that didn't seem right either. So I just walked out, and to add insult to injury, I gave the coupon to my nephew, who went back the next day and used it to win a bet at blackjack (the coupon was collected by the dealer).
I feel like I was ethically obligated to go back and return the overpaid amount no matter how much time had elapsed--but the fact remains, I didn't. What would y'all do in a similar situation?
The fact that a believer is happier than a skeptic is no more to the point than the fact that a drunken man is happier than a sober one. The happiness of credulity is a cheap and dangerous quality.---George Bernard Shaw