I used to believe that my nightlight stopped ghosts from haunting me, because ghosts only come out in the dark, and that sleeping with my blanket pulled up over my neck (even in summer) would prevent vampire bites. Which makes perfect sense, considering the well-known vampire aversion to gingham.
A childhood belief about vampires

others believed things like this
- I used to believe that towels were sleeping ghosts, and at night they would come out and get you— bajd
- When I was a child I thought that dogs can see ghosts but now I think that they can sense disaster— Steven Altamirano
- I used to think I was a vampire, and that my parents were trying to kill me by making me go to school. — Max
- every time I see a shadow thats not mine I freak out because I think It's a vampire— Dalton Anderson
- I used to think that there were ghosts in the loft and that's why I was not allowed to go up there.Anon
- When I was child I used to believe that people who die become ghosts and could see youAnon