Some of these you've never seen before.

Found that $20 bill on the doormat of the California Grande. I was wondering if I should go into the cardroom and announce in a loud voice, "Would the person who dropped the twenty bucks outside stop playing cards and come up here?" But I did not want to get charged with Inciting a Riot, so what could I do?

When Columbus found a $20 doubloon on the Bahamas, do you think he returned it to Queen Isabella?