Another student was fooling around and locked him outside the classroom, so he got mad. 另一个学生在捣蛋，结果把他锁在教室外面，所以他就生气了。
While his father was around the boy was on his good behaviour, but when the father left the boy soon got into mischief. 这个男孩当他父亲在场的时候规规矩矩，但他父亲一离开，他便调皮捣蛋起来。
