poacher turned gamekeeper
背離原來目標或行動，轉為剝奪者或對抗者的立場和行動者
口語·描述身份反轉
英文釋義
someone who used to do something dishonest or illegal but now works to prevent others from doing it
例句
The former hacker became a cybersecurity expert—a real poacher turned gamekeeper.
典故來源
源自英國鄉村，偷獵者（poacher）轉為看守獵物者（gamekeeper），比喻立場轉變。