Thank you Soupdragon! That is what I was trying to say but obviously not very good. I would interfere of course if I saw anyone 'punch, shake and hit a child', not counting harrassed mothers in supermarkets! (joke!) But I haven't, however I have seen plenty of incidents that Soupdragon describes, lots of arm movements but no contact.
And where do you draw the line? If you saw a child being slapped in the supermarket would you intervene? Take the child into care? I've seen a mother treat her son very harshy in Church! She shakes him roughly (he's about 2), grabs his arms and looks at him with this horribly contorted face, when the poor little mite has hardly done anything wrong! I did smile at him once and got such a filthy look in return, I wonder why she's at Church at all? Should I intervene there or is it none of my business? I would guess the latter. I feel sorry for him but I cannot inflict my style of parenting on him just because I feel that his mother is in the wrong. She might think I'm too laid back with mine.
I just think we should be careful in judging. The video showed a couple of seconds of someone's life and we are judging them based on that? As SoupDragon and I have tried to point out, you never actually see her hands come into contact with the child. And for the record, this is exactly what my mum used to do with me, hair pulling, shaking, hitting, screaming, etc. Should I have been placed into care perhaps?
For the record I don't believe in corporal punishment.