When I was a child, the child next door claimed there was a trap door in his house. I never challenged him on that, but suspected he made up the whole story.
A few years later, I was babysitting for a family who moved into that same house, and the child I babysat wanted to show me something “really neat”. He led me to a wooden box attached to the floor in one of the closets, and opened the lid of the box. Then he dropped a shirt in there.
It was a laundry chute.
Take my word for it. This New York Times article by Ronda Kaysen is even more exciting than that.