A boy falls out of a tree but is caught. It takes about a minute for him to be pulled back up to safety.
A boy is pushed out of a tree and falls, breaking his leg.
Boys are taken to a mock trial on account of an incident during the school year.
A boy goes off to war and loses his mind. He accuses the main character of having no knowing of what friendship is. He gets slapped in the face and yelled at for this.
Several boys scream at each other, resulting on one falling down a flight of steps.
It is discussed that a boy is killed during a surgery - bone marrow getting into his bloodstream and stopping his heart. We do not see his dead body or see him actually die.