When I heard people mention sealing wax I thought it was ceiling wax. I couldn't fathom why anyone would need to wax their ceiling.
A childhood belief about around the house

others believed things like this
- My brother used to believe that ceiling fans were helicopters flipped upsidedown and stuck in the ceiling.— Seven
- I thought my age started at 4, because I couldn't recall any mention of my age before.Anon
- I thought being mentally challenged meant you couldn't do any challenges with peopleAnon
- whenever i heard a melody, i thought it stuck in my stomach when i heard it in my mindAnon
- I used to think that if I closed my eyes other people couldn't see me.Anon
- I used to believe that you couldn't marry people with different eye colors as you.Anon