Okay, I suddenly feel better about any trading mistakes I might have ever done. How about this one? The Motley Fool Take on Thursday, October 3, 2002 Goldman Sacks Investors Perhaps, right after the Series 7 license, Bear Stearns should add Mavis Beacon Teaches Typing to its list of requirements for clerks and brokers. Making an unfortunate "typo," a clerk entered an order to sell nearly $4 billion worth of S&P 500 securities yesterday, when the order should've been $4 million. Um, oops! Unfortunately, NYSE's software program doesn't offer an "Undo" function. All but $622 million of the orders were canceled before execution, according to the exchange, and Bear Stearns will try to cancel the rest today. Memo to clerk: You're clearly tired... oops... fired.