Isn't There a Hotline?

I know there's a number to call when your spouse is abusing you.
And I know there's a number to call when an adult is abusing a child.

What number do I call when my lovely son jacks me in the jaw?

I was minding my own business when he asked me to sit and read him a book. (Sounded more like "sssit. booogkh.") He climbed on my lap and we proceeded to read the truck book from the Hatchell's for the millionth time. At the end he gave a maniacal little laugh. Then he laughed again, throwing his head back - directly into my mouth.

It took my breath away and as I was trying to console him (should the victim console the attacker?), my lip was swelling and bleeding. When I told him that mommy had an owie he kissed me and hugged me and clapped for himself. Yes, attacker, you did good.