The 18th-century British physician John Hunter, who was a pioneer in the field of surgery and served as surgeon to King George III, suffered from angina. Discovering that his attacks were often brought on by anger, Hunter lamented, "My life is at the mercy of any scoundrel who chooses to put me in a passion." These words proved prophetic, for at a meeting of the board of St. George's Hospital in London, Hunter got into a heated argument with other board members, walked out, and dropped dead in the next room.