That's easy for you to say but don't know the background of the guy. I don't believe in corporal punishment either. But there's plenty of members of my extended family that does and can't fathom why anybody would have a problem with it.
IMO their is nothing wrong with a swap on the butt to keep kids from harming themselves, by playing with fire for example , but even then you don 't make them bleed. AP just cooked his goose, what a shame, not easy being a parent.