Professor L. enters his marketing class prepared to discuss the use and abuse of direct-mail techniques. At first, he barely notices the chatter of the students as he pulls notes from his briefcase. He soon realizes that the "chatter" is really a somewhat heated discussion: students who had attended a lecture by a prominent political activist the previous evening are debating the merits of her argument. L. finds himself drawn into the discussion by the passion of the students; after glancing at his watch, he decides to shorten his prepared remarks and allow the class time to continue this discussion even though it is not related to direct-mail techniques.