"Business School" is the seventeenth episode of the third season of the American 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.