It may appear well-organized, but it only takes one clever cookie to figure out the instructor was reusing exams. And that person was just too impressed with himself not to let others know. Let's not underestimate the ingenuity of cmpt students! Perhaps the cultural thing was a hacker thing not an asian thing. Just saying you have to be careful of hindsight. What if the class was not full of Asian students? You wouldn't be mentioning this flashback at all then.