It's expected that you'll be kind toward your siblings.
John and Chris are two ten year old brothers living with their parents.
John wants his parents to love him more than his they do his brother.
John treats his brother Chris very well especially in front of his parents.
John beats Chris up whenever he can and also tells his parents that Chris does bad stuff.
Chris is much happier and John's parents think John is a model child.
Chris becomes very sad and John's parents find out the truth and punish John.