I was standing in line at the testing center, waiting for my turn to undergo the mental pain and anguish of an undergraduate science exam. The testing center at my university was an interesting place - it was quiet except for the occasional cough or shuffling of feet, and many swore they could smell the cortisol in the air.
Finally, I got to the front desk and was handed my exam and scratch paper. I sat down and mentally vomited the electron configuration diagrams and other chemistry tables I had memorized onto my scratch paper. While probably not the best way to learn the material, it was very effective at helping me pass (and usually excel on) my science exams.