Only thing I ever failed was a quarter of gym class my senior year. By no means did I give 2 sh!ts about the class, but there was nothing to warrant failing. Was so indignant that, as a 17 year old, I stormed into the phys-ed offices and proceeded to launch into a, completely out of character, 10 minute expletive laced tirade at this 40-50 something year old teacher in front of his colleagues... without a single repercussion. He looked so castratated by the berating that the other gym teachers started laughing at him while I was ranting at him.
As a result of failing the class, I had to take gym class daily with him for the next quarter. First day, I blasted him in the back of the head with a basketball without any attempt to hide the fact it was me... or that it was 100% intentional. When he turned around to see who did it I glared at him as if to say Which one of us do you think made the mistake.
I was no better the rest of the quarter, or the rest of the year for that matter, but apparently the cost of the point he was trying to make wasnt worth it to him as I passed the rest of the year without so much as a sideways glance, despite actively working to make his life miserable at every opportunity.
For context, I was a less nerdy version, IMO, of Anthony Michael Hall in The Breakfast Club and that gym teacher was my elephant lamp with the effed up trunk-switch... except that I repeatedly shot the flare gun at the elephant lamp at every opportunity, and yet they never gave me Saturday detention.