Absolutely categorically think that smacking (hitting) anyone, especially if they love you are smaller than you and dependant upon you is wrong. As for the smacking shows you love them brigade, well words fail me. You do realise that is the excuse used by those monsters who beat their partners black and blue? How would any of you feel if I lost my temper and smacked your grandchild if they were being noisy or misbehaving? You would be outraged of course. The only thing different is who is doing the hitting
Do you still have all your own teeth?