Whatever wrong or bad has happened in your life, do not let it happen to others.If you are going on a road where the road is closed due to some kind of traffic or any reason, then naturally you will start returning on the same path, and you will advise anyone who meets you on the way that doesn't go because the road is closed. This is a very common example that we often find, in this, some people tell you that the road is closed, but there are some people who want you to come back the way they had to come back, by doing this, they feel happy.
There are many more incidences that happen in our life, some people try that what happened to them badly, they will not do the same to others, but there are some people who avenge their injustice through bothers an innocent person. With that, they feel self-satisfied. Whatever happened to us, if we find it, then perhaps for this incident, our weakness may be the most important factor behind this, but if we feel happy seeing the same wrong happening to others, then it will be considered cowardice, not weakness.
Try not to let wrong happen to yourself too, but still if something bad happens then don't do the same wrong to anyone else and don't let it happen.