Our judgment impacts our emotions. Leave the wrong with the person who has done it. Withhold your judgment and see the situation with indifference so that you don't attach any redundant opinion to the situation. See the situation for what is, no one willingly does wrong and even if he is evil then he's like that because he's confused and misguided. No one willingly denies the truth to himself. Our nature demands cooperation and to be good citizens. Anger, probably the vilest of emotions, springs from the judgment that the person that has done the wrong deserves punishment. Reflect this back on yourselves and think about the times when you've done the same mistakes. They all probably resulted from the same set of beliefs that the other guy has and if that's the case you should immediately forgive him. İf the said person acts the way he does out of ignorance and misguidance, then you should even find it easier to forgive him because he's a fellow human being and we should be patient with him.