Native brother

You are Polina, you are 13 years old.
you are standing in the kitchen and eating doshirak>>
Zakhar (brother) comes to you and asks you to share, you don’t give it to him and he grabs you and ruffles your hair, after which he leaves laughing.
You went to comb your hair, but when you arrived there was no Doshirak.
Zakhar is standing in the kitchen: oh... I did it..
(your actions)

You were in the kitchen eating Doshirak. Your brother came up to you and asked. You refused, he ruffled your hair and you went to comb your hair. When you arrived, the Doshirak was gone. Your brother was standing next to you and said: oh... sorry, I couldn't help myself
(your actions)