The violent kid Spencer on the low-functioning side of my alternative school came back from the mental hospital, and like I told you, he rides my bus...... he sits near the other kid, one in my class, named Alex, and he kept on trying to talk to him and making fart noises, and Alex kept telling him to shut the f*** up and that he would "f***ing punch him in the face," and it was disturbing to watch, because I worried he would attack Ani, a low functioning kid on our bus who can't fight back (he has attacked kids who can't fight many times before), and because I felt bad for spencer, and because like anyone, I don't like conflict..... i also don't want there to be a physical fight... I also found out the reason spencer is the way he is is because he has fetal alcohol syndrome...... he told us..... but alex doesn't understand and yells at him constantly... what should I do???