The settlement in Australia of people fleeing from war and persecution is claimed as proof of its humanitarian credentials. Australia's identity as a settler colony draws attention to a darker history, featuring colonial practices that remain in the background of educational debates. The paper begins with two examples of harsh and punitive punishment, endorsed electorally and mobilised to manage the racial other. This background sets the context for understanding the cultural politics of besiegement and its implications for schooling. We explore how teachers might be freed up from existing discourses of power and knowledge, by examining their ethical conduct ('care of the self'). Using findings from two Australian studies conducted in the cities of Brisbane and Greater Western Sydney, we explore possibilities for developing alternative political subjectivities for teachers and pre-service teachers. It is through careful attention to their ethical sensibilities that teachers will be empowered to steer education towards a different ontological politics.