Conversations between AIDS counsellors and their clients bring delicate and potentially threatening issues into play. In this study Anssi Peräkylä applies the principles of conversation analysis to his exploration of AIDS counselling, using data from video-recorded counselling sessions in a London teaching hospital. He meticulously analyses this data to show how various questioning techniques, in this case arising from the Milan School Family Systems theory, operate in these situations, and how counsellors attempt through the design and placement of their questions to achieve the co-operation of their clients, with varying success. His conclusions provide a timely and illuminating insight into the management of a sensitive topic through various techniques of indirectness.