Right. The teacher can't force you.
Of course, she can take it off your grade.
But that's fine. It's one grade.
Oh, but there's more.
There's homework every night.
Dang, look at that D.
Maybe you could pull up that grade.
Or of course, you could ignore it, cause the teacher can't force you to do it.
You won't get a job better than fast food or retail because you failed eighth grade, employers don't like that.
Colleges won't accept you.
People won't go out with you because you either can't pay the bills or live with family/friends.
You will die uncontented.
Sure, the teacher can't force you.
But she can hurt you a hell of a lot more.
PSA over.