<Tr> <Td> ← Previous "Phyllis' Wedding" </Td> <Td> Next → "Cocktails" </Td> </Tr> <Tr> <Td_colspan="2"> The Office (U.S. season 3) List of The Office (U.S. TV series) episodes </Td> </Tr> <P> "Business School" is the seventeenth episode of the third season of the American comedy television series The Office, and the show's forty - fifth episode overall . Written by Brent Forrester, and directed by Buffy the Vampire Slayer and Firefly creator Joss Whedon, the episode aired on NBC on February 15, 2007 . </P> <P> In the episode, Michael is invited by Ryan to speak to his business school class . When many of the students question the usefulness of paper in a computerized world, Michael attempts to inform the class of how essential paper is . Meanwhile, a bat becomes trapped in the office, leading Dwight on a mission to protect the employees . </P>

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