My sister and I used to think that when you flushed the toilet on a plane a trapdoor would open and the contents of the toilet would be sucked out (because of the loud noise) and dropped from the plane. So everytime a plane flew overhead we'd run into the house or under a tree. Eventually a friend told us that that was not true. Instead we were told that everything is stored in the plane, and frozen into a cube of waste, and that sometimes this cube is accidently dropped from the plane, so we still ran from planes. I'm still not sure whether to believe that or not.
A childhood belief about aeroplanes

others believed things like this
- I used to believe that when you flushed an aeroplane toilet the waste would just drop out of the plane.Anon
- I thought that the jetstream from planes was white paint. Which was constantly poured out from the plane.— Tore
- My friend's sister used to think the auto pilot on a plane was an inflatable man like the one in Airplane!— Richard Davies
- I used to believe in the plane there were birds to make it fly— laura 401
- I used to believe that Florida was up in the clouds and that's why we had to take a plane to get there.Anon
- if heavy people went on a plane i thought that it would tip over.— michael hague