If you seriously had to throw up five minutes at a time, would you not just stay home? Just saying.
My 7th grade social studies teacher was bipolar(we thought so). We'd be reading from our books, she'd walk over to her book shelf that nobody touched. She'd continue to throw every book off the shelf saying that it was our fault, and made some of us clean it up. She explained it as 'its her property, she wants the books straight'.