when someone did you wrong, would you take a revenge?

United States
September 7, 2009 2:22pm CST
So, revenge is part of our human nature. When someone did you wrong, we are more than likely to take revenge on them. For instance, at work, a co - worker rat out another co -worker's mistake at work, he/she got a warning from the supervisor. Next time, that co - worker wait for a perfect opportunity to revenge on what he/she did. That goes on and on for while. They were enemy ever since. Would revenge worth the effort sometimes. At what circumstance would you take revenge on someone who did you wrong before?