If you do something that hurts someone else, you develop negative karma.
 
If someone does something you don’t like and you respond by doing something that hurts them, you develop negative karma.
 
It’s a simple as that.
 
Like the old saying goes, “An eye for an eye would leave everyone blind.”
 
Yet, people never consider any of this as they pass through their life.
 
Many people feel they have the right to say or do anything that they feel like saying or doing, no matter the consequences to anyone else.
 
Many people feel they have the right to respond in kind when someone does something that they felt they did not like or something that damaged some element of their life or their ego. But, do they ever contemplate that perhaps that something that someone did to them was simply the play of karma and them receiving the negative response to some action that they did to someone else in the past?
 
The response to that question is most probably, no.
 
If you trace the life of other people, and you follow their existence over a long period of time, it is easy to see that the people who base their life on goodness flow though their existence with little or no problems. Happiness, success, and good things come to them.
 
This is the same if you observe the life of someone who commonly unleashes hurt and/or negativity, in whatever form it may take. For them, they come to live a life defined by turmoil, chaos, loneliness and suffering.
 
Look to your own life. Look to any time you encountered some negative something. When this occurred, did you ever study your past to see what brought you to that experience in your life? Or, did you simply throw up your hands and scream for sympathy? Or, did you decide to get even?
 
It’s easy to judge other people. It’s easy to hurt someone. It’s easy to claim they are bad and they deserve whatever it is you are going to do to them. But, anyone who lives their life on this level is existing at the one of the lowest levels of human consciousness. Again, hurtful actions are very easy to unleash. Many, even believe they have a reason to do so? But, what is an intentional hurtful action? At best, it is only someone believing they have the right to cast a judgment or to take something from someone else without that other individual’s permission.
 
Look to your own actions. Were you always right in your judgements? Look to your own actions. Were you always right in your actions? Look to the words and the actions of those who have focused their negative attentions your direction. Were they always right in their motivations?
 
The answer to all of these questions is most probably, no.   
 
Simply by studying that equation, in and of itself, it becomes revealed what that the motivation for that style of action truly represents. Selfishness.
 
Just know, if you hurt you will be hurt. Any negative word or action you unleash will find its way back to you. No matter what your motivation for doing it may be. Maybe immediately, maybe in the future. But, when it does, look no farther than what you created when your karma comes knocking.