He definitely wouldn't be sued. My school doesn't let students wear a lot of things and guess what. They've never been sued. And you know why? Because a school isn't a place for wearing those things. If the staff doesn't want you wearing something they have the authority to either make you cover it or send you home.
Everyone in this situation is just stupid. The stupid kids shouldn't have done it, the rest of the stupid people shouldn't be angry, and the stupid school should have handled it differently.
I don't think ridding ourselves of guns is a good idea, but not because of the "defense" argument. I use mine on a weekly basis for sport shooting. I have never and don't plan to ever point my guns at any living being. I don't see how owning them is a danger to anyone.
My bison live a very healthy lifestyle, thank you very much.
That seems like such an old-people cure, but I know I don't get all the junk I need from my diet. I may have to try it.