When I was in elementary school, I thought the manhole covers on the playground were where the teachers - who were also aliens - lived when the students went home.
A childhood belief about teachers

others believed things like this
- my sister used to tell me that manhole covers were direct portals to hell.— autumn
- I believed that our teachers lived at school. They were teachers--they had no reason to leave :)(Anon
- It never occured to me as a child that teachers lived in houses. I thought they lived at school...— Heidi, Pittsburgh, PA
- when i first started school i thought the teachers lived in the school and slept on the tables.— emma
- I used to believe that my school teachers lived inside the school and my school bus driver lived on the bus. Anon
- When I was in elementary school I use to think that teacher lived at school at their desks all year long.Anon