 Despite seeming to take Stephen’s point against Mill, however, Hart goes on to adopt the other-regarding/self-regarding understanding in a limited context: so far, he says, as the “special topic of sexual morality” is concerned there may exist a realm or area of conduct that is harmless; here it does seem, “prima facie plausible that there are actions immoral by accepted standards and yet not harmful to others” (Hart 1963 [1982: 5]). It is not, however, clear how this understanding of harm is to be reconciled with Hart’s other uses of the term. For example, he discusses (sceptically) whether the “moral distress” of persons occasioned by the moral wrongdoing of others should count as harm to them (Hart 1963 [1982: 46]); cf. Waldron 1987 [1993]); and he asserts that animal cruelty should be criminal, not pace Devlin to “enforce a moral principle”, but on account of animal suffering. If there is a coherent way of bringing these various understandings of harm together, Hart does not himself supply it.