In 1989, a bank-teller at the Old National Bank in Spokane, WA refused to validate the $0.50 parking stub of a shabbily dressed man who'd come in to cash a check. That shabbily dressed man was John Barrier, a 30-year customer of the bank with more than $1 million on deposit; which he promptly withdrew and took to Seafirst Bank, down the street. (via Reddit)