Discussion has long held an honored place in the pantheon of lionized adult education practices. One of the most frequently venerated aspects of discussion is opening up conversation to include the widest possible diversity of perspectives and intellectual traditions. This democratic attempt to be open and inclusive is held to represent what is best about adult education--its humanistic concern to have all voices heard, all experiences analyzed, and all viewpoints honored. Herbert Marcuse's concept of repressive tolerance stands directly against these sentiments. Marcuse argues that an alternative idea, concept or text can be inserted into a discussion of familiar, mainstream materials in such a way that serves only to underscore the normality of the center while positioning the alternatives as exotic others. This paper explores how this process occurs and suggests how it might be countered.