Everyone says this on these threads every time. Can you imagine that they are the exact same way behind closed doors. If I'm going to discipline my kid in my home for something, I'm going to do the same thing if I were out and about. Except I can't do a time out thing for obvious reasons but yelling... yup, A swat on the behind.... yup, a smack in the mouth if hey talk back... yup.
they know the rules and the consequences are the same no matter where they are. I don['t care who is "watching" me or following me around. It's not your child, MYOB !
And to answer..... I would mind my own business. If it is not extreme physical then it is not my business. I don't consider a swat or smack to be abuse. It is a lesson learned in discipline for some. And it works for my kids.