I used to believe that if I didn't finish my duties in the bathroom in under 10 seconds (walking in, closing the door, sitting down, using the toilet, grabbing the toilet paper, etc.), something bad would happen. Each time that something bad was different, like something coming out of the toilet, or something popping out from behind the shower curtains.
A childhood belief about fear of

others believed things like this
- 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 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 believe that monsters lived in my toilet and they ate my poop and urine when i flushed the toilet.Anon
- I use to think that mummies were wrapped in toilet paper.— Glowworm
- I used to beleve when i was 4 that the flush on the toilet was to wake up toilet monsters.— Millie
- I used to think if I left the toilet seat open my cat would get flushed down the toilet.— G