It is now common practice for service users to be involved in the training of students and professionals that care for them. This is recognition of the contribution that the unique insights of people’s lived experience can make to the development of practitioners. In this work, two mental health service users share their experiences of facilitating a session on the prevention and management of violence and aggression (PMVA) training delivery. The training is provided to NHS mental health inpatient ward staff and to final year mental health university degree students. The narrative takes one through the recruitment processes for the service user trainers and how they prepare and manage their session. Furthermore, the service-user trainers articulate their uneasiness about the possible effects the disclosure of their restraint experiences could have on them. Their contribution to Middlesex University PMVA team’s training delivery is evaluated through an examination of its impact on practice. From the findings, their contribution has positive impacts on ward practice. This confirms findings from other studies on service user involvement.