In the light of today’s trends on psychiatric treatment it appears more and more clear that mental health specialists should combine prescribing drugs with psychosocial intervention and/or psycho therapy in order both to augment and consolidate the results on long terni periods. One of the main examples of successful therapy and outstanding results is the application of CBT techniques in phobias disorders. The observation that reliable methods of reducing fear involved exposure to the feared situation led to the developineiii of the exposure principle as the rationale for the success for the behavioural treatments for phobic and obsessive — compulsive disorders. This article illustrates a role play with Prof Isaac Marks, 1-meritus Professor of Psychiatry at L ondon university, past president of ‘European Association for Behavioural and Cognitive Therapy (EABCT) at an introductive course of Behaviour Therapy held in lasi.