Tell her that according to the new divination teacher she is going to die an early, grotesque, and painful death when Jupiter is in the 5th house. Then glance thoughtfully a the ceiling and say "Isn't that tomarrow?"
:::>^..^<::: ~*~The Journey is more important than the end or the start~*~ :::>^..^<:::
When you fall asleep in class, and you will, when she scolds you, claim to have had a horrible dream about her death, then tell her "no, I can't talk about it, it's too scary" Use this excuse all the time.
When she sees a grim in your tea leaves, tell her that is your dog Cuddles, he follows you everwhere.