Just because you can do something doesn't mean you should. Humanists are really big on thinking before we act. We have found that if we don't think before we act, we are liable to do something stupid, or worse, dangerous.
This is especially true when you are hurt in some way. Just remember, you don't have to act on every emotion you feel. Especially when you are feeling feelings of revenge. Just think about what the consequences of your actions will be. And... wait a few days to before acting on any negative emotion. What seemed perfectly reasonable in the heat of emotion will often seem really idiotic once reason has regained supremecy. Remember, you are in control of what you do. Don't let your emotions control you.