案例刘某,男,某中学初二学生,据父母和老师反映该生自初一下学期开始就变得异常反叛。在家经常和父母顶嘴,父母让干什么他就偏不干什么,父母说不对的不好的事他却偏偏要尝试一下。父母强烈反对他吸烟,可他却想尽一切办法吸烟。在学校也不服管教,经常与老师顶撞,上课不认真 Case Liu, male, a second-year middle school student, according to parents and teachers reflect the students since the beginning of the semester has become abnormal rebellion. He often talked to his parents at home, what he did not do for his parents, but he did not think he was right to do something. Parents strongly opposed him smoking, but he tried every means to smoke. Also refused to take discipline in schools, often with the teacher hit the class is not serious