In my memory, the last time I get punishment was ten years old.

When I was in the school, I always beat my classmate，I just play that like a joke, I think playing some joke with my classmate is so funny， but one day, I heat my classmate and he falls down the stairs, he broke his arm.In that time I know I get trouble，but I am unaware.  When the teacher finds our parents, I feel the storm is coming. After this, my parents told me,if I do it again they will beat me and put me in the prison.  After this event，I know the severity of kidding，and I become a good student.

From this event, I know that joke is joke，but when the joke play too far it can be a harm.