This is a randomised controlled trial comparing the effectiveness of simulation (involving actors), an educational video and no intervention, as adjuncts to group discussion, on students' ability to identify and report intimidation. Medical students from the University of Montreal in Montreal, Canada, will be recruited at the beginning of surgical clerkship. They will complete a standardized and validated pre-intervention questionnaire on their experience with intimidation consisting of multiple choice questions and short answers. They will be randomised to one of the three interventions lasting 70 minutes that will be followed by a 20-minute standardized discussion on intimidation with all students participating together. At the end of their surgical rotation, they will complete a similar post-intervention questionnaire with additional questions pertaining to the reporting of intimidation.