My assistant principal worked out a compromise that went like this:
Since Mom didn’t want a lot of phone calls (apparently a busy person), it was agreed that I would write a note to Mom in Diva’s agenda every Friday about her grade and her missing work. Embarrassed and chastised, I could barely look my boss in the eye.
I resolved that I would comply to the fullest, so much so that it would be annoying. I would be above reproach, so that she could never berate me like that again. However, I never could have imagined the incredible events that followed.
However, any principal I've worked with also knows this about the parents, so they put on a show to calm the animals down but trust you to do something to try shutting them up next time.