I had a first grade teacher tell not just my parents, but all my classmates that I had behavioral and developmental problems and didn't belong in her class and tried to stick me in special ed. My mother, being an actual special ed teacher, called her out on that nonsense.
I was later evaluated and placed in gifted and talented, but my classmates never forgot that one teacher telling them I was "special." Every achievement I've made since then has proven to be satisfactory vengeance for those years of abuse I endured.
But yes, I feel your pain. (FYI, I was managing a donut shop while taking AP courses at 17, so that jr. high principal of yours can bite my Bismarck!)