Revenge is for God and little kids.
I've been able to work anger out of my system by taking up a sport and concentrating on that. You could take Karate or something, and that might help.
No doubt, I've felt like doing something at times, but never have. Ya gotta ask yourself whether it's worth it. You get caught and it brings dishonor on the family name. Even if you aren't caught, you'll feel bad about it later for being a sneaky coward (if you have a conscience), like Lazs said.
The only thing I can think of that would justify revenge, would be if someone murdered or raped a family member. Then I would go to prison if I got my hands on them.
The Italians have a saying:
The best revenge is to live well.
And the best way to forget about revenge, is to have something good happen that makes you forget about it, f.g win the lottery, get laid, get a promotion at work, etc...
Les