my grandmother had me convinced that you should always lock the car door you were sitting next to, because at any moment it could fly open and you would fall out. I thereafter viewed car doors as unpredictable creatures with an unending desire to fling themselves open and kill me, and it's automatic to lock the door as soon as I'm in the car, even if the car door lock automatically.
A childhood belief about cars

others believed things like this
- i used 2 believe when i left my closet door open at
night a skelleton would pop out and wave at me— bex - I thought if I left the door open too long, a dog would come from the cupboard in the washroom and eat me
Anon - I was told as a kid that if you kept stuffing a Big Buddies (bubble gum)I would get lock jaw.— Dawn
- I used to think that 'Child Locking' only worked on children and that older people could still open the door.— Anonymous Whistleblower
- My sibs and I thought that the screen door was called the "scream door" so Mom could yell at us through it. — Kyle
- I used to believe there was a secret door to the gremlin world hidden under my bed— Mel