The author questions a friend's suggestion that they might have Oppositional Defiant Disorder, arguing that this diagnosis medicalises and depoliticises resistance to authority. The author contends that ODD is a label used by systems to control individuals who refuse to conform, rather than a genuine pathology of the person. Drawing on the ideas of philosophers like Derrida, Foucault, Illich, Laing, hooks, Deleuze & Guattari, and Freire, the text posits that such diagnoses are tools of power, creating binaries that privilege compliance and pathologise dissent. Ultimately, the author argues that defiance is not a disorder but a form of knowledge and autonomy in the face of oppressive structures.https://philosophics.blog/2025/05/25/the-disorder-of-saying-no/