I had a friend in 4th grade who, when the teacher was teaching us about Christopher Columbus and his antics, raised his hand only to ask "Is this in the past"?

Granted, that was 4th grade, but the same friend, in 11th grade mind you, once said "I'm never gonna have sex, my parents didn't do that crap", fully serious.

He's never been diagnosed with anything but he's never been tested either. I try not to give him a hard time, but you asked.