[paulryanrogers]

Can you elaborate on how Billy's dad would make sure he never threw rocks at people again?

FWIW, I grew up in the Midwest in the 80s and was subject to corporal punishment. Also witnessed only the black children being spanked at school in the South Eastern US.

[GlibMonkeyDeath]

Sure - having raised kids myself, and never once hitting them, there are lots of ways to memorably punish a kid. First and foremost, kids really respond when their parents get upset. They remembered when I was visibly angry with something they did. Throw in some "I am so disappointed with you" from the other parent, maybe grounding them or taking something away they want, and we have something a kid would like to avoid in the future. Like any punishment, it can't be used too much or it loses effectiveness (so if you blow up at your kids constantly all you are doing is funding a future therapist's income...)

FWIW, teachers in my (basically all-white) school in the Northeast US in the 70's and 80's would occasionally paddle kids for egregious behavior (like doing something dangerous or open insubordination.) In my low-N observations, it had dubious effectiveness. Kids who were generally good but just messed up once appeared to be "scared straight", although of course I can't say if it was more effective than non-corporal punishment. The sudden shock and embarrassment of being paddled seemed to be effective though. If the kid was a "behavior problem" paddling wouldn't fix the underlying issues.

Also, if you were punished at school, you could expect to be punished at home, if your parents ever found out. Most parents back then would immediately side with the teachers; that's something else that has really shifted in the last half-century. Today, parents are involved to the point of interference, at least in the more affluent areas.