I used to think all food for adults were called Sad Meals, as opposed to Happy Meals (like at McDonald's).

I thought some wild stuff as a child that feels more fantastical than strictly dumb. Like I thought everyone was psychic except me and could hear my thoughts. I thought time worked differently depending on who I talked with. I thought the earth was both flat or round depending on where you were standing. I'd often get dreams and reality confused too. For some reason I thought dogs were people who had been cursed into becoming pets, probably because of me seeing the donkeys from Pinocchio. I thought half of people were robots fueled by pieces of the sun they'd pluck out of the sky.

This one is common, but I thought water simply phased through your body if you touched it. There was an episode of Bill Nye where he mentions that water "goes through your hand" and says it just like that. So I thought water simply phased through hands.

I think I was just abused as a kid and neglected