Dad flying solo. Remembering 9/11. Discussing history in demeaning and dehumanizing people, cultures and nations. Just follow the Golden Rule or if religious, like Dad is, live the two great commandements. Love God and Love your neighbor. If anything, follow the rules that Dad puts up for his elementary kids as he substitutes: 1) Be Kind 2) Keep your hands and feet to yourself 3) Be Kind. Yes it needs to be said twice..... cheers!