I look at the situation like this....Im in college studying anatomy and physiology for serveral weeks preparing for my finals. A few days (8 days) before the test the teacher goes on sick leave and another bio teacher comes in to replace him. The bio teacher figuring that your a/p I and bio I are simialar sciences decides he wants to give you a bio final....would you take that test on such short notice?
Do you get paid well to take finals every few months? Is that your full time job?
Sorry friend, but your analogy is not valid.