Imagine you are taking a walk one night in your city. You come to an intersection with a traffic light. The pedestrian light says stop, but the entire road is empty. You wait and wait before finally deciding to cross the street. No cars come, and you go on with your walk. Technically, what you did was illegal. But, if you asked an average person if what you did was immoral, they would probably say no. Now imagine that a friend of yours has just gotten a terrible haircut. When they ask for your opinion, you lie and say, "It looks great!" When they leave, you gossip with another friend about how bad the haircut really is. In this case, nothing that you did was against the law, but most people would say you were in the wrong.