"The Case of the Tingling Clitoris" by Dr. Watson. A client's innocence can be established only by demonstrating her sexual prowess. How will Sherlock Holmes accomplish this? And did you know that the master detective once authored a small monograph on the recognition and cleaning of hundreds of fabrics from the stains left by sexual activities, whether autoerotic or communal? This latter information was quite valuable to Dr. Watson, who engaged in certain manual activities while observing the proceedings from a secluded spot nearby. Superb story!