You don’t discipline cats by “punching them in the head.”
Please. Don’t ever get a cat. Nor any pet, for that matter.
Maybe you should read all the posts and see all the videos before you take a high handed position.
The cat wasn’t at fault. The boy wasn’t at fault. THE MOTHER WAS AT FAULT.
Have a good evening.
BTW, I rescue abused Dobermans from idiots. I have a bunch of them around the place.