It is wrong to play jokes on others.
Jack is bored in school and is thinking about placing a tack on his classmate's chair as a prank.
Jack wants to consider playing a prank on his classmate.
Jack resists playing a prank on his classmate and just find other ways to amuse himself.
Jack puts a tack on his classmate's chair and watches in amusement.
Jack manage to alleviate his boredom without hurting anyone and Jack's classmates enjoy their day without any issues.
Jack's classmate gets hurt and Jack gets severely punished for it.