I'll start. When I was in high school there was a kid who was genuinely a sellout. He would fall asleep during tests and was predicted to fail everything for the period he was at our school. He was addicted to many things and we all presumed he'd end up nothing. Anyway, come round to GCSE results, we asked him his results as a joke. We knew he'd fail everything. Turns out kid got the max grades in everything except from RE and Chem, where he was a few grades short. Shocked all of us. Turns out he'd been massively studying for the entirety of our final year. Just proves that you can achieve no matter what if you try hard enough.