If I was walking down the street and I saw someone "smacking" a child, and I took it apon myself to "smack" said someone. I could rightly be prosecuted for assault!
If you were walking down the street and you saw a woman kissing someone, and you took it upon yourself to kiss said woman, you could also be prosecuted for assault!
a child can NEVER "duly deserve" to be assalted by an adult!
And, of course, you know all kids, huh?
With some kids only a full scale assault by SWAT teams is the only chance to put them in line ;)
Btw. spanking of kids (within reason) is legit in Canada. They upheld he law about a year or so ago.
We banned physical punishment on criminals because it was wrong and didn't work.
What makes you think the psychological punishment would work?