Safety is an everlasting concern in construction environment, when an accident happen it is rarely harmless. To raise awareness and train workers to safety procedures, training centers have risk-hunting courses where real-life equipment is set up in an incorrect way. Trainee can safely observe these environments and is supposed to point at risk situations. In this paper, we propose a risk-hunting course in VR (Virtual Reality). With VR, we can put the trainee in a full construction environment with potentially dangerous hazards without engaging his safety. Contrary to others risk-hunting courses, we have designed a virtual environment with interactions to emphasize the importance of learning to correct the errors. First, instead of only having to spot the errors, we make the trainee act to fix the error. We want the act of fixing an error to become a reflex action. The second way we use interaction is by adding consequences to not fixing an error. For example, not fixing an error in a scaffolding may make it collapse later. This rely on scriptwriting the virtual environment to add causality on specific actions, our goal is to educate the trainee on the dramatic consequences that can arise when errors are not corrected.