â€˜Misdiagnosis, diagnosing errors and delays in making a diagnosis are amongst the most common types of medical negligence claimsâ€™. So run the opening remarks of the webpage of a firm of solicitors specialising in compensation law. Frankly, in this book I am not interested in physical disease: it is the spiritual variety which concerns me. Nor am I interested in compensation: I want to prevent the disease in the first place. And for that, accurate diagnosis is essential. So where do we start? With Sandemanianismâ€™s symptoms.