2. Although some situations have a predictable script, unanticipated things can happen in any situation, requiring a change of script or topic. Wilkins points out, that a physical situational setting such as “At the Post Office” or “In a Restaurant” does not necessarily predict the language forms that will be used. One may go into a restaurant not to order a meal but to ask directions to a nearby museum or to change money for a telephone call. While certain language functions will most likely occur in certain situational settings, physical setting cannot really predict language use. It depends on who the students are and where they are learning. Thus determining the appropriate list of situations for a general class is difficult.