The eternal struggle of unit conversion! Nothing triggers physics students more than a professor casually mixing SI and imperial units in the same problem like some kind of measurement anarchist. It's the academic equivalent of putting pineapple on pizza and then claiming it's authentic Italian cuisine.
Converting between newtons and pounds while also juggling meters and feet is the special kind of torture reserved for the ninth circle of STEM hell. No wonder this student is fantasizing about sock-based revenge - they've probably lost precious exam points to unit conversion errors one too many times!