It's bad to hate a good friend.
Doris wears a pair of new shoes and plays with her friend Eva, who accidentally steps on her shoe making it dirty.
Doris wants to react to her dirty shoes.
Doris tells Eva that her shoes are new and feels sad about the accident making them dirty.
Doris acts in an antagonistic way toward Eva whenever they meet.
Eva cleans the shoes for Doris and decorates her shoes with her favorite pins, and Doris feels happy.
Eva feels puzzled and depressed.