YOu are expected to treat your friends' siblings with respect.
Casey, a seven year old, glares at his sister Sabrina when she refuses to let him have one of her cookies.
Casey wants to express his anger.
Casey talks about his intense feelings and his desire with his mother.
Casey sticks out his tongue at Sabrina calling her a toad before walking away.
Sabrina overhears the conversation and bakes another batch of cookies for her family.
Sabrina avoids Casey for the next three days.