" Poverty drove their parents to have them castrated as young children, hoping they would earn a better living at court. Usually the father would take the boy to a specialist castrator, who operated by the appointment of the court. After a contract was signed, absolving the castrator from any responsibility in case of death or failure (both highly likely outcomes), the unimaginably painful operation was performed. The castrator’s fee was huge and had to be paid from future earnings. "

― Jung Chang , Empress Dowager Cixi: The Concubine Who Launched Modern China