In a thread a few months ago, I mentioned that I would implement a very similar approach when my son starts school and experiences bullying (if he does). I was told how much of a mistake it would be, in the event I used this approach.
I’m wise enough to know two things: the school systems suck and bullies are p***ies. I’m just gracious enough to give a fair warning as opposed to giving my son the green light to run roughshod. Also, at that point, I will have a layer of “protection” (i.e. teacher was aware, a subsequent meeting with said teacher and administrators was held, etc.) to preclude a crooked ass system from screwing my son out of a fair shake at an education, much like you did.