The lecture explores how complaint can be understood as a form of diversity work: the work you do to transform an institution, or the work you do when you do not quite inhabit the norm of an institution. If doing diversity work is heard as complaint, making a complaint often requires becoming a diversity worker. This is not to say that those who make complaints always think of themselves as diversity workers in the sense of trying to transform the institution in which the complaint is lodged. But in order to proceed with a complaint you often have to become a diversity worker because making a complaint within an institution brings you up against it. The lecture explores how we learn about the institutional (as usual) from those who are trying to transform institutions. The lecture will discuss how complaint is a sensational intervention into institutional life.