While he was in London, Frantisek Kotzwara visited a prostitute named Susannah Hill in Vine Street, Westminster. After dinner with her in her lodgings, Kotzwara paid her two shillings and requested that she cut off his testicles. Hill refused to do so. Kotzwara then tied a ligature around the doorknob, the other end fastened around his neck, and proceeded to have sexual intercourse with Hill. After it was over, Kotzwara was dead.
https://en.m.wikipedia.org/wiki/List_of_unusual_deaths