I used to believe that if you flushed a spider down the toilet that it could crawl back up when you were using the toilet!
A childhood belief about fear of

others believed things like this
- 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
- When I was 8 I thought a spider lived in the toilet and would bite me if I sat on it.— Mike
- i used to believe that scoripons could crawl up your toilet and pull you in.
No thanks to my big brother!— Alexandra - I used to believe that the toilet would suck me down if I flushed it.— :-)