At the university, I passed an exam without attending the class nor the exam.

Bit of context: French University, American history course in an amphitheatre (maybe 50-70 people attended that course), pretty important course because if you failed it you'd be in trouble passing through the year. Nevertheless, at that time, I was taking driving lessons, and the only available hours were during that course, so I skipped it every week.

On the exam day, I was sick (stuff coming out from both side) so I didn't show up. I didn't say to the teacher that I couldn't be there and I surely didn't ask her if I could take the exam later. Just went low-profile, full submarine mode.

Months later, and, my my, what a surprise: American history: 10/20 - Pass. I don't know who messed up, the teacher or the university, but I surely didn't say anything to anyone at the university and clearly didn't give a fuck about it. Just took my 10/20 and passed the year.

The funny part here is that maybe half of the class failed that exam and had to retake it.

Tl; DR: Didn't show up to an exam, half the class failed, but I passed it.