If you are asked to list all the what things is it that you can never tolerate such as casual spitting,littering,name-calling. There are far more instances than we have just listed.
It is time for us to abandon these long-time bad habits. In real life,we need urgently to do some soul-searching and the act of correcting, at the same time, we need more righteous and responsible people to step forward and speak no to bad custom.
Custom influences each of us easily, and has potentially wide inheritance, which is raised to "social custome" later whatever good or bad, and it can even develop into the label of behavior of the country of the nation. So quitting long-time bad habits and restablishing good habits are not simply private affairs.