Its actually common behavior of people to act out to draw attention away from their behavior. If you look at a lot of people who cheat on their significant others, you will find people who often instigate arguments in order to draw attention away from why they are getting home so late. If the other person feels under attack enough, they may not strike back and ask the tough questions. I like to call it cheating husband syndrome. Women do it as well, but its much more common for men, as its socially acceptable for men to be aggressive and they therefore rely on said behavior more often. The point is, with people like that it often becomes a habit. Whenever they feel challenged, they will go into a rage and act in an unreasonable manner, no matter how wrong they are, and they will even convince themselves that the other individual was at fault, even if it is blatantly obvious that they werent. The likelihood is that they will recount this story to friends and family, in a highly edited version, and even if the others think they are wrong, they will likely say nothing so that they dont get yelled at, slapped or kicked in the grille.