To me, when someone sins against me, it makes me sad, then it makes me angry. Then it takes a piece of my spirit - makes me untrusting, or unsure of entering into a situation that can make me feel those bad feelings again. When I sin, I feel mad at myself. I know it's wrong, so why did I do it? Why did I succumb? Am I not a good person? Am I unGodly?
If someone hurts you, and you purposely hurt them back, knowing that what you're doing is wrong, it's calculated. And that makes you just as wrong, if not worse. I don't know where the saying comes from, but I was always raised to think, "Two wrongs don't make a right". And it's true. I believe that God will take care of people's wrongs, I'm not in a position to do that on my own.
But, if you witness a man trying to rape a woman and you step in and hurt that person in order to stop them, and turn them into the police, that would be acted upon anger that was for a good cause.