I used to think that the toilet water was immediately recycled to other parts of the house after flushing, so until I was 12 or so, I would wash my hands BEFORE I flushed the toilet at home. I also wouldn't get a drink of tap water for at least an hour after, and would let the toilet sit unflushed until after I showered if I had to use the restroom right before bathtime. I never was able to break the habit until I read a book about plumbing. oops.
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 used to beleive that if you flushed the toilet that it would explode and all the water would shoot out.— Michelle
- 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 think if I left the toilet seat open my cat would get flushed down the toilet.— G
- The phrase 'Recycled toilet paper' always worried me.Anon
- that bathroom tap water was recycled "potty" water from the toliet. — livingdeadgirl