Absolutely loved every single moment of school. Even the few bad moments then seem like great experiences now. I've met people from every walk of life though school; doctors, dentists, psychologists, drug dealers, drug abusers, police officers, Muslims, personal trainers, homosexuals, goons, convicted criminals, weirdos, murderers, the list is endless.
When I was at school I used to pay more attention to people's actions and interactions than the teacher. I'm now a bit of an armchair psychologist, I love understanding people and their motives, etc., I regularly meet a friend who is a qualified psychologist (not for treatment, but to discuss psychology).
One of many memories of school: Picking up my 4-and-a-half foot tall mate (with permission) and throwing him across a row of chessboards while people were playing chess on them. I believe any player who thought "these guys are hilarious", enjoyed school, and anyone who thought "FFS my important game of chess is ruined and I hate these jokers" were too serious for school and are one of the people who would probably be on this forum saying they didn't like school.