don't get mad, get even idiom
别激动，报复吧！（告诉别人与其为人困扰，不如以牙还牙）
something that you say in order to tell someone not to be angry when another person has upset them, but instead to do something that will upset that person very much
This is my advice to wives whose husbands have left them for a younger woman - don't get mad, get even! 这是我对丈夫另觅新欢的妻子的忠告－别激动，以其人之道还治其人之身吧！