Results of a study of negative examples of social behavior (characters from a classical Russian satirical comedy "Revizor") are described. Experimental-semantical procedures have been used in combination with analysis of art-critical literature dedicated to the play. Subjects (both spectators and performers of the corresponding roles) were to assess similarity of 11 main characters. Computer-established factors have been found to closely correspond to the art-critical data. It has been also experimentally shown that discrepancies in statements of performers are to be explained by a specific role position in relation to the general system of characters in the play. The study throws some light onto social-psychological mechanisms responsible for generation and undesirable stability of negative stereotypes of social behavior. Theatrical art, as a form of social-psychological training of communication and behavior, is shown to be an important means of moral education and of psychological-pedagogical correction of social behavior.