I went to school in Canada, frats are not big here. Said prof I mentioned had this thing where he would give basically identical test to test in lets say 4 yea

I went to school in Canada, frats are not big here. Said prof I mentioned had this thing where he would give basically identical test to test in lets say 4 years ago. But there would be couple tiny changes, like index of summation using j instead of k, maybe addition -1 term somewhere. Like clockwork EVERY single time at least 15-20 people out of class of 100 would get nailed. Since he had tenure and been around for like 30 years he did not give a shit he would fail them all. So all of these guys would take this course as correspondence course in other school.