Seeing as how the "supermarket scenario" is so popular, I will use this.
Mum is pushing the trolley, little Gracie is sitting in the trolley. As they pass the soft-drinks aisle, little Gracie says that she wants a bottle of red-bull. "No Gracie, you can't have that". The situation goes down hill and little Gracie starts crying - and as Mum pushes the trolley further away from that desirable bottle of red bull, little Gracie goes into hysterics - a tantrum.
Now the pro-repeal people are saying: "hitting or smacking your child will not help, it will only make the problem worse". I agree whole-heartedly. I hope I would never physically discipline my child in a public place. I have never seen a loving smack applied to a child in a supermarket - and I believe I never will. I do see frustrated, wound up parents however, lashing out at their children - at the end of their emotional tether. A slap on the thigh. The parent roughly grabs the child by the had and drags him/her along.
This is unreasonable and unloving force. And parents do this because programs like S.K.I.P. say "don't smack your children" - so the parent tries not to, but eventually gets really annoyed. As Helen Clark said "a ban on smacking would defy human nature" - and so, the parent lashes out at the child in frustration.
S.K.I.P., Greens, Labour, you have caused the problem.
"Gracie, you'll be getting a smack on the bottom when we get home". Mum's words cut through her crying and yelling. Suddenly little Gracie is a different girl, she controls herself and sits still - she knows that if she continues with her silly tantrum - that Mum will give her another smack.
At home, little Gracie heads down to her bedroom and waits for her Mum. When her Mum tells her "I really don't like doing this", Gracie will doubt it - but later, when she's 16 or 17 years old, she will look back and say: "ah, yes, Mum really did care enough to smack me".
Parents, don't hit your children!