The author views middle class adolescent, drug cult drop-outs as lacking, for a variety of reasons, father figures with whom they could interact in a normal and healthy rebellion. On this basis, he devised exclusion therapy which establishes, for resistive clients, a kind of severity of initiation. The paper describes the process as follows: a strong, admirable therapist who seems to hold out the opportunity to help the youths grow up, demands of them seven full days free of addiction prior to being admitted to therapy. Individual therapy and subsequent group therapy are both kept continuously contingent on "cleanness." The paper describes the population with which exclusion therapy was developed: 282 adolescents, age 15-25, who self-described themselves as hippies, drop-outs, drug freaks, etc. The major emphasis of the technique is elaborated, with a constant focus on the consistency of the father-figure therapist. The discussion which concludes the paper stresses that exclusion therapy is not for everyone, but that it had been effective on a large percentage of its resistive client population. (TL)