As someone who grew up with undiagnosed ADHD (found out when I was 45), I see this from 2 different standpoints. On one hand, I understand peoples reactions. Not the most empathetic stance the teacher could have took. I’m not immediately sure firing was the best response. I don’t know enough to make an informed conclusion, but I believe that education is the best response in most circumstances. Society is too quick to fire people for anything and everything.
On the other hand, I have a strange humour, even as a kid. Personally, I’d be show the award around, and generally bragging about it. My personal reaction notwithstanding, we all have a choice about how to react to these situations. Perhaps trying a little humour instead of going for the guns?