As a kid that pretty much lived in ISS in elementary school do your son a favor and just take him home or drop them with a baby sitter/family member if possible. We were forced to copy the dictionary from the first bell to the last bell. I missed large chunks of my early education because of this which later came back to haunt because I was severly behind other classmates later in school. Missed learning my times tables, learning measurements simple things that I never had a chance to really learn because all we were allowed to do was copy defenitions from a dictonary all day. Anyway that's my two cents op, good on your son for sticking up for his friend give tye school hell.