I remember quite well my first exposure to an international conference of behaviour therapists, albeit through a haze of Irish hospitality. As a trainee clinical psychologist in the early 1970s, at a time when training budgets could stretch to the occasional foreign conference, I was fortunate enough to attend one of the early, and now infamous, Wexford Congresses on Behaviour Modification, organized by the now defunct Behavioural Engineering Association of Ireland.