https://torasavigdor.org/rav-avigdor-miller-on-how-to-deal-with-an-insolent-boy/
How is this PC? It is also dated that it came from a quote in 1995 - not sure that this was when it was actually said.
This definitely hit a chord. I probably grew up in an era where spanking started being phased out (I was in elementary school in the 80s). As the class clown and trouble maker, I was definitely hit quite a bit, starting as early as 1st grade. More so by my teachers than by my parents. Understand that spanking in schools wasn't limited to Jewish schools - many of my catholic friends have told me about their run-ins with the Ruler-wielding nuns.
This hit more of a chord, because there was one particular Rebbe who essentially followed along the lines of what R' Miller said. If you misbehaved, he'd call you up to his desk, and take out a book of tehilim (psalms) and tell you that he was reciting chapters of tehilim as a prayer that the punishment he was about to dole out was for the appropriate reasons. He'd then stand up (ask you to remove your glasses if you were wearing them) and smacked you full force across the face. Not once or twice, but at least a handful of times, sometimes more (the top 3 in the class were me and two other kids, each hit 20-25 consecutive times). He was not a small man either - he was about 6'2"-6'3" and about 220 - he wasn't fat, he was solid.
In those days, there was no ADHD, no learning disabilities, limited drugs. Kids were just lazy and slow, and if you didn't fit the square peg they tried to put you in, it was because of one of those two reasons, and they'd beat the living snot out of you until you were less lazy or a little faster.
I'm sure that there are those of you who would argue that I was probably behaving poorly to deserve it, and that it's appropriate. But as an adult, 30+ years removed, the only thing it beat out of me was any desire to learn limudei kodesh. It took me 3 more schools to find my true love of torah. It came in my third school, not because the educators were so great, but because it was so small they had the time to answer my questions, and foster my love of learning.