Compares the reasoning in two judgments concerning wrongful conception from the House of Lords and the Australian High Court, with diametrically opposed results; the former invoking distributive justice to deny liability for the full, foreseeable and often foreseen consequences of a negligent sterilisation procedure resulting in the birth of a healthy child, and the other allowing that full range of liability based on corrective justice reasoning. Considers the causes and frequency of failed sterilisations in the UK and the deterrent effect on medical practice of imposing full liability for the consequences.