I watched Batman Returns when I was 4 and every time I went to the toilet I thought the Penguin would come up from the sewers and pull me down.
A childhood belief about fear of

others believed things like this
- When I was younger, I thought Eskimos ate penguin eggsAnon
- I used to believe that if I got a pet penguin it could live in the freezer.— Dippingmytoes
- When I was little I used to believe that I was a koala/ penguin it really scared away a few people.— Koalaluver
- 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 there really was alligators in the sewers— Makron
- I used to think that Batman was Blackman. He wore a black superhero outfit, so it made sense to me.Anon