A penny saved is a penny earned, and a penny earned by exploiting a loophole is the sweetest penny of all.
People shared the times they discovered ambiguous rules and faulty machines, using them to their advantage. Parking garages and vending machines have never been so intriguing.
About a decade ago a nightclub had a contest night where people could earn 'dirty dollars' which was fake money printed by the club. the person with the most 'dirty dollars' at the end would walk with $500 cash. The fake money was given out by Bartenders, Servers, Security, Managers and their friends. The staff couldn't win, so it was basically a way to get people to act wild and slutty. Girls flashed crowds, made out with each other, licked whipped cream off of each other, etc. Guys would eat cans of dog food, drink disgusting shots, whatever. It was a way to get people to act slutty, or be degraded, but they advertised to 'Do whatever it takes to be the one with the most Dirty Dollars at midnight to win $500 CASH!"