Just doing their jobs, right? Making sure you understood the power of guilt.
In our household, my father treated a simple mistake or accident, like spilling a glass of water, as he would a intended transgression of pure evil, although none of those ever occurred. There were no accidents in our home. He knew that every error was intended, probably planned, and carried out with precision. So, punishments were equal to what he imagined the crime to be.
Consequently, I have a tendency to beat myself up over mistakes and accidents, believing I should know better, try harder, be more careful, slow down. No excuses, no allowances, no forgiveness.