I used to believe that when you flushed an aeroplane toilet the waste would just drop out of the plane.
A childhood belief about general

others believed things like this
- i used to belive that when you flush a toilet on an aeroplane you get sucked down— milly
- I used to think the suction of an aeroplane toilet was large enough to suck your kidneys and spleen out.— Big Chrissy S_ _ _ _ _
- I used to believe that monsters lived in my toilet and they ate my poop and urine when i flushed the toilet.Anon
- I used to believe that if I flushed the toilet before I showered, I would take a shower in dirty toilet water.— Chris D
- I used to think if I left the toilet seat open my cat would get flushed down the toilet.— G
- I used to believe that the toilet would suck me down if I flushed it.— :-)