The best way to get back at someone is not by inflicting harm on them -- whether physical, mental, or emotional pain. It's not by wishing that something bad were to happen to them. It's not by stealing from, cheating on, lying to, or publicly embarrassing them. All of these methods are cold, calculated, utterly pointless and, quite frankly, callow. Two wrongs don't make a right. By seeking retribution, you stoop to the other person's level. The best way to get back at someone is by demonstrating to them that your life is richer and more fulfilling without them in it.  In other words, you show that making the most of your life -- by indulging your hobbies and spending time with people you love -- doesn't have to involve him or her. Whether the person dumped you, cheated on you, stabbed you in the back, or did something else to betray your trust, rest assured that someday, somebody will do the same to them. It is then they'll realize how you must h...

It goes without saying that people should never try to hurt others deliberately. Even if someone has hurt or deceived you first -- say, by spreading a rumor about you or cheating on you -- seeking retribution isn't going to make you feel better. If anything, you would be stooping down to their level, making the resentment you feel toward them fester longer. Instead, show you're above such pettiness by speaking privately with them and reaffirming your expectations. If they apologize for what they did, and you wish to salvage the relationship, make it clear to them that you will not carry on unless you're given the respect you deserve. If they do not apologize, or if you're simply at wit's end, make it clear that you want nothing to do with them anymore. (Walking away without declaring your intentions is also your prerogative.) If you want to convey that you're fed up with someone, indifference is far more effective than getting all worked up, as the l...