Life rule

When considering all aspects to life, one of my life rules that everyone should follow is to think before they do or say something. Some people have even thrown away their lives because of their actions. People could throw away their whole life in a fit of rage by hurting someone. Or they could even get addicted to drugs and be looked down on. It does not take much to screw up a person's life, just one bad decision. Say someone got very upset with a teacher, if they just reacted in a college setting they might get kicked out of the class. If they got kicked out of a class other school would find out and they would not want to accept them because of their mistake. That is example of many, so people should always think before they act.