Oh cripes spare me from the "express yourself" brigade.
Yes, it is good to challenge authority and stand up for yourself and others when the authority is truly in the wrong. But most of the time, yes, I think kids do need to "keep it zipped and do as they're told", and if they did, my country's school ratings would not be in the toilet.
And yes I do work with children, and yes, even in the past 5-10 years things have changed. So many of the students need praise for everything they do. They literally cannot go on to the next task until they feel they have been properly validated for the previous one, even if it's the simplest thing. And if there's a problem, or the student gets upset about the teacher's decision, the parents are up there immediately demanding to know, basically, why the teacher doesn't realize how special and sensitive their little darling is.
I have smacked my son. He would not stop hitting/kicking/scratching me and his father when he was upset. I explained to him why it wasn't nice, we talked about it several times, I tried removing things, time-outs, etc. But he kept doing it, because he wanted to and he knew it really upset us. Finally I took him aside one day when we were talking and said "you have been doing such-and-such a lot, and I've told you very nicely to stop. You are not listening to my words. So the next time you hit mommy or daddy, I'm afraid I'm going to have to spank your bottom." His eyes got huge and we talked about it a bit.
A few days later he tested me on it, I spanked him (with clothing on!), he was very upset, and has never done it again.
I don't feel the slightest bit guilty, actually. But I would never, ever say I was going to hit him in the face or pull his pants down, etc. And I try very hard not to shout (and usually succeed) and never swear at him.
I don't think people who don't smack are lily-livered "oh no darling, please don't kick the nice man in the face" parents, but nor do I think parents who dole out the occasional smack are monsters or partake in "lazy vile parenting."