Negative conditioning or aversion therapy is most frequently thought of in relation to the treatment of alcoholism. The article by Franks (1958) gives an excellent review of the general principles involved. However, Eysenck (1960) includes several papers in his book to illustrate the effectiveness of such treatment in cases of homosexuality, writer's cramp (Liversedge and Sylvester, 1955) and fetishism (Raymond, 1956). A suggestion made in the latter was that the fetishist may well become such because of an unusual capacity for quickly forming conditioned responses, and therefore by the same token might equally easily respond to a de-conditioning technique. For this reason, the following case was treated by behaviour therapy by a psychiatrist and clinical psychologist in collaboration, and is reported in support of Raymond's (1956) advocacy of this technique of treatment in similar cases.