One day, Rong Qimu, a child, asked his father if his sister was his father's daughter.
Dad replied, of course.
Child: Was that born between you and your mother?
Dad: If it wasn't me and you and your mother, who else could it be?
Child: So, my sister and I have the same father and mother, so why do we have different surnames?
Dad:······
Child: The other brothers and sisters all take their father's surname. Why is my surname Rong and my sister's surname Zhao?
Dad:······
Child: Dad, are you married to your mother? Are you already a legal couple?
Dad: Of course we are married, we are a legal couple!
The child looked at his father sadly and said nothing.
Dad is angry, brat, what's that look in your eyes? I'm your dad!