Due to the movie Poltergeist and how the clown doll grabs the brother and pulls him into the other dimension under the bed, I spent years leaping from my doorway to my bed. I'm 27 and still do this sometimes.
This also led to my long-standing (still-standing) fear of clowns. It's the unnatural smile, I think. To this day I can't stand 'em.
A childhood belief about under my bed

others believed things like this
- I used to think that "No standing signs" meant that you weren't allowed to actually stand in the area!Anon
- I used to believe that since guys peed while standing up, then they must poo while standing up too.— Stupid girl
- I thought for the longest time that a No Standing traffic sign meant no person should stand near that sign.— Shannon
- My dad used to say that if you ate standing up, then all the food would go to your big toe.Anon
- I used to think it was possible for girls to pee standing up. I even tried.Anon
- That is was a "standing obation" not "ovation"— Robin