Completely agree with Cadet. Revenge is never a good motive for doing anything Revenge as a by product of living a good , happy , content life is a different matter
Like you and I would assume others , the temptation of revenge can feel good but realistically in 10 years time you will want to look back and know that you acted in gods faith and have a clear conscience
Just my humble opinion. And remember Buddas classic teaching , Karmas a bit@h !!!!