<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 US version of The Office, and the show's 45th overall . In the episode, Michael Scott (Steve Carell) is invited by Ryan Howard (B.J. Novak) 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 Schrute (Rainn Wilson) on a mission to protect the employees . </P> <P> The episode was written by Brent Forrester, and directed by Buffy the Vampire Slayer and Firefly creator Joss Whedon . Whedon became involved with the show due to being a friend of series creator Greg Daniels as well as series co-star Jenna Fischer . Despite Whedon's experience with Buffy the Vampire Slayer, the sub-plot about Dwight coming to believe that Jim Halpert is a vampire was entirely coincidental . </P> <P> The episode aired on NBC on February 15, 2007 and was seen by an estimated 8.84 million viewers according to Nielsen Media Research . It was positively received by television critics, with several writing positively of Joss Whedon's involvement . Carell's performance was also positively received, and several critics applauded the scene in which Michael says positive things about Pam's art . </P>

What episode does jim pretend to be a vampire
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