My ex used to go on and on about this. I was not Catholic and so assumed there must be something to it, as many who heard his dramatic story seemed to enjoy it so and sometimes relate it to things they had heard. He was and undisciplined kid from a large family and started out taller and bigger than the others (who eventually caught up with him) and his 2nd grade teacher cruelly used him as her “bad example” and it did have a lasting effect (and it made for great stories!). His mother took him out at the end of that year when she found out how the years had been for him…
But years later I became Catholic and wondered more. Were the other nuns also really awful, I asked for the first time? No. The Kdg. and 1st grade nuns were nice. And so was the nun- principal he was so often sent to.
Well my public school 2nd grade teacher was really awful too. She would would shock me by dumping my desk and making me pick it all up while she shamed me. I think I was so afraid of her I tuned her out. My 1st grade teacher had been so nice…This teacher had lasting bad effects on me.
But it never made a “great story”, not like the "mean nun"story. And I have never met anyone who did not have a bad public school teacher along the way. So I have come to think that were good and bad nun teachers, just like good and bad public school teachers. The nun ones just make great stories because its politically correct to put nuns down, IMO.