When I was about 5, this sudden notion came over me that when I flushed, the toilet was going to overflow, so I would therefore have to go and ask someone (usually my mom and dad) if it was okay to flush the toilet.
I think this came from one time when the neighbor girl was over, and she would use unusually large wads of toilet paper even when she peed. One of her wads probably plugged up the toilet and it overflowed.
A childhood belief about fear of

others believed things like this
- I thought that toilet paper was bread and by puting it it the toilet i was feeding the ducks at the bottem.— Gringo
- I used to beleve when i was 4 that the flush on the toilet was to wake up toilet monsters.— Millie
- 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
- My brother (who was 6 at the time) would never flush the toilet in fear of our new house being blown up! Anon