GOOD: Studying for a marine biology test.
BAD:Forgetting everything you studied.
REALLY GOOD: Having your marine biology teacher ask you to run the tests through the scantron grading machine.
REALLY REALLY GOOD: Seeing a pencil on the counter and switching your answers so you pass.
REALLY BAD: Realizing you just erased the answers on the key and changed them to your wrong answers instead of making your own answers right.
GOOD: Erasing the answers on test key and then actually switching some your wrong answers to right ones.
REALLY REALLY BAD: Having your teacher realize that your test and the key have the same eraser marks and busting you for cheating.
JUST PLAIN EMBARASSING: Not changing enough answers to pass and failing by 2%.