Back when I was studying, I had a final exam on my last year (so basically one of the most important exams in my career) that was about PHP. It was 3h, and we had to complete a theory part and then code a bunch of stuff.

I attended that exam while completely drunk. So much so that I don't remember anything about it. Somehow I didn't get kicked out.

I genuinely expected to fail it, and instead I got my best grade up to that point, an 8/10.