Both teachers of physical education or other disciplines are distraught by the deviant behavior of their students. In order to detect and study these behaviors as well as teachers' reactions, we opted for a case study based research of five students adopting different deviant behaviors.In fact, when conducting the case study of the five students, we were able to show how some of them suffered from the humiliation and belittlement of their teachers. Among the complex causes of challenging behaviors, there is the peculiar psychological history of each student. These behaviors are messages sent to adults (teachers), calls for help that we must not ignore, sanction them yes, but do not neglect them, it is better to take them seriously and seek to understand them and detect their causes in order to remedy it.When students adopt deviant behaviors, the main challenge for the teacher is to remain able to perceive behind these adolescent students, humans in the making and continue to accompany them anyway. The multiplication of these deviant behaviors raises the question of the answers or professional reactions to face them. The dilemma of any teacher is to manage school deregulation situations so that there is no impact on the learning process.The management of teacher-student conflicts is an essential element in order to guarantee that the latter does not break with the school institution.