When someone beats a rug, the blows are not against the rug, but against the dust in it.
Where did we ever get the crazy idea that in order to make children do better, first we have to make them feel worse? Think of the last time you felt humiliated or treated unfairly. Did you feel like cooperating or doing better?
Nobody should be whipped. Remember that, once and for all. Neither man nor animal can be influenced by anything but suggestion.