Wetting The Bed

Why do I wet my bed?
Why do I wet my bed every day?
And get scolded every day.
It's terrible for mother in winter.
But I can't help it.
My father used to wet his bed when he was small.
Still, my father scolds me.
Then, I get angry and hit him.
My father laughs.
Everyday nobody likes me because I wet the bed, yet I'm smiling.
I'm smiling all the time.