Say there's some physio equation that I realized I blanked out on early in the test. I allowed use my break time between blocks to leave, look up the info, come back, write it on my white board, and just keep it there for the rest of the exam? Or would this be considered "unusual circumstances" that the testing center could report? (I'm not asking if you can leave in the middle of a block and look up something--obviously that's a no-no.)