H omer Simpson has come between Marcel and his friends. Last Tuesday, Marcel left middle school muttering. His English teacher had begun keeping her classroom open during lunch to screen episodes of The Simpsons for interested students. It’s hardly surprising that a lot of students turned out to be interested—sixth graders in particular, boys and girls that Marcel had come to count on seeing during their lunch breaks. Marcel loves The Simpsons—maybe even more than the average kid—so it’s significant that he would find the opportunity to screen 10-year-old Treehouse of Horror episodes objectionable. It speaks more to the hours of work he’s invested in building a community of peers and the degree to which he is missing their fellowship and lame, pick-up kickball…