I believed as a small child travelling on a plane that if you stood too close to the pan as the toilet flushed you would be sucked in and fall out of the hole for waste under the plane.
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 used to think that when sombady when to the bathroom in the plane it would go strait out and fall on sombody— Tony Magana
- I used to believe that if you didn't close the toilet lid after flushing, you would get sucked down into it.— Maya
- 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