I don't know how many of you went through this, but did you have to go to a special classroom with other JWs in it for the national anthem?
I remember encountering this, and I thought it was weird. I remember being told NOT TO BE IN THE CLASSROOM, but this was a classroom! I think the school system came up with this particular way of handling JWs standing out in the hallways. High Schools don't like having kids in the hallway, and this was a way to solve the problem. That's just a guess.