Arthur bought a tombstone a while back in order to save money and the salesman assured him that he would most likely be dead by 2000, so he pre-printed the “19” on the tombstone so that they would only have to fill out the end of the year. Fast forward to 1999 and Arthur finds out he has 8 months to die or else his tombstone will go to waste. This clip is a succinct enough clip to teach about sunk costs since the price of the tombstone has already been paid and Arthur wouldn’t be able to get his money back.