This paper describes the introduction of the training of non-technical skills on a mandatory course for surgical trainees. The training consisted of an introduction to non-technical skills in a plenum session and was followed by a full-scale simulation with debriefing in which participants reflected on their actions. Evaluations showed that > 90% of the participants found that the subject was relevant for their further training and some requested more simulation training. The course hereby addresses several of the Danish seven roles of a fully trained specialist doctor.