The power of the legislature to override court rulings on rights—and to legislate ‘notwithstanding’ rights—is one of the most notable and controversial features of the Canadian Charter of Rights and Freedoms 1982 and the UK Human Rights Act 1998. By giving courts the power to protect rights, whilst giving the legislature the last word, the legislative override seems to solve the notorious counter-majoritarian difficulty. Yet in both jurisdictions, there has been a tendency to underuse the override. In this article, I argue that the underuse of the override is rooted in a set of unwritten constitutional norms requiring the branches of government to treat each other with comity and mutual respect—norms which preclude the legislature from regularly or lightly overriding court decisions. Foregrounding the principles of comity, collaboration, and conflict-avoidance, I argue that legislatures should apply—and in Canada and the UK generally do apply—a general presumption in favour of complying with judicial decisions, unless that presumption is rebutted by exceptional circumstances. Based on a close, comparative analysis of Canada and the UK, I then explore contemporary concerns about an increased use of the override in the Canadian context—and the potential for the Supreme Court of Canada to enter the fray by adjudicating the exercise of the override in challenging times.