There is a kid in my son's class who is obsessed with weapons, Nazi's and graphic murders online. He freaks my son out. I've told him to always be polite, never rude. But my son is really worried this kid will do something and because he sits next to him - he will be the first person it happens to. How do I approach the school without sounding like a Karen - as this kid hasn't actually 'done' anything yet.