In societies; modern as traditional, it is increasingly noted the recurrence of patterns of deviant behaviour and very often justified. Yet all human beings who have reasons acknowledge what is permitted and encouraged on the one hand and on the other hand, what is prohibited and condemned by the laws of society. This is thanks to some defense mechanisms and other social reasons, some people or groups tend to trivialize or even to relativize all forms of vice and in the present case, issues revolving around the incivility. It is clear that any negative act done within such a framework leaves most of the time to witnesses an "indelible" stain that the community should mitigate if not clear. Through a psychological approach, we intend to develop this thinking to lay bare some reasons favouring the proliferation of this phenomenon, particularly in the Cameroonian society. The goal here is to call back consciences to order and bring about a change of behaviour which will certainly allow the development of our societies and our living conditions improved.