I skipped class once my first year of college. There was nothing left to be graded on for the semester except the final, and the only thing we were doing in class that day was taking a pop quiz on the reading, which we did every week. But the two lowest grades were thrown out, and I'd gotten 100 on all the others and it was the last class of the semester so I went bowling instead. I still feel guilty about it eight years later, even though it didn't matter at all that I wasn't there. My mom taught public school for 25 years and drilled a pretty serious respect for education into me.