What's the most advanced thing you understood at a young age?

I wasn’t told that and felt it my duty to break the heart of every kid I met. I had about 30 first graders in the hallway crying in December of ‘67. It was quite a scandal that ended with my Dad telling the teacher and principal I could be punished only if they could prove I was lying. He still wasn’t real happy about them trying to “cure” my left handedness the year before.

About 5 years later my brother pulled the same thing.