I have never heard of a school banning needles (epi-pens), though apparently one screwed that up.
But slippery slope nonsense it just an excuse, its not reality.
Banning one lousy veg, isn't the start of communism or the new creation of Hitler.
Its not even a big deal to ban peanuts, it helps a few students, and despite the slippery slope nonsense, it does not lead to kids following Mein Kemph.
Schools around my way ... they have to be kept at the nurses office