A highly paid agent sets out to undermine his principal’s business. A doctor wangles sex-for-drugs favours from a patient. An advisor offers self-interested advice to his client. A father engages in an incestuous relationship with his child. In each case the perpetrator is clearly a wrongdoer and the law must somehow respond. But what is the legal wrong and how should the law respond? The thesis advanced here is that it is too easy - and is ultimately unsatisfactory - to meet any justifiable moral outrage simply by tagging these people as fiduciaries and then applying against them the full remedial force of fiduciary law. If the law is to be applied consistently, predictably and efficiently, then categorisation of fact situations as illustr...