“Are you simply a frustrated doctor? Perhaps deep down what you wanted to be was a neurosurgeon?” are comments I have occasionally fielded. As it happened I never yearned to be a medical doctor, and while clinical neuropsychology does have many things in common with neurology, neurosurgery, and psychiatry, equally valid might have been the comment, “Are you a frustrated detective?” Most research has an element of detective work, whatever the field, and clinical neuropsychology is no exception. For me, it is the mix of working as a clinician and a researcher simultaneously that is the attraction of clinical neuropsychology. And these two aspects of the discipline are at their powerful best when the clinician or researcher comes across a patient with a neurological disorder or a collection of symptoms that are rare. If the patient is willing and is well enough to be tested, the neuropsychologist has an opportunity to discover something new about the way the mind works, and hopefully the careful research assessments will also provide detailed information that can improve the patient’s rehabilitation programme.