Senior year, I took a intro Psych course where the final was online. The questions were multiple choice, chosen from a large pool. The test was setup in such a

Senior year, I took a intro Psych course where the final was online. The questions were multiple choice, chosen from a large pool. The test was setup in such a way that we could re-take the exam as many times as we want and students would receive their highest score as their final exam grade. The idea was that if you took it 20 times, you would inevitably learn most of the material. So, I imagine you can guess how I took the exam. After writing an running few scripts, my final exam scores showed that I took the exam 31 times: The first 30 times (as I was collecting questions and their answers) I received 0% and each exam took ~30 seconds. On the 31st exam I got 100% and it took ~45 seconds. As you would expect, I got an A+ for the course. I never did bring it up to the prof. In a similar vein, in my astronomy course we had online quizes and one type of question asked us to identify a picture. Viewing the page's source would occasionally reveal the the picture's filename, e.g. "sagittarius.gif".