I used to think that the bath support rail in my great gran's flat was some sort of emergency slide rail, and if she was suddenly hurt or even dead, an air ambulance would land on the roof and the paramedic team would slide through the ceiling, like with those sliding polls that you get in playgrounds!
A childhood belief about around the house

others believed things like this
- I used to believe that if you drove over a banana peel the car would slide off the road.Anon
- My brother used to believe that ceiling fans were helicopters flipped upsidedown and stuck in the ceiling.— Seven
- My mom thought "ambulance" was "ambliance"— Molly
- Our mum told us that the ice-cream van noise was a children's ambulance— moonpants & sausage
- i used to believe that scaffolding was used to support buildings when they were having work on them.Anon
- I used to think that
"The land of make believe"
was
"The land of baked beans."— Baked Bean!