I enjoyed this episode as well. What a great teacher, And Louie broke his heart. There is no doubt that that was to be the PSH role, a natural. I would love an update on the lives of some of the characters, but bringing them into his current life would feel too contrived.
When your children do things you did at their age, it does bring you back, and it is a conflict. My daughter was caught drinking at school at Lilly's age, and she had Relatively significant consequences. Now that she's 20, we can joke about it, but I still think I (and the school) did the right thing at the time.