I used to believe that the road sign for slippery roads (the back of a car with squiggly lines behind it, on a yellow background) actually meant, "beware of busses on tall squiggly legs." I could picture these towering busses on wobbly legs attempting to step over traffic. I still have to tell myself that that isn't what they've depicted.
A childhood belief about road signs

others believed things like this
- I thought the “Slippery When Wet” traffic sign was a car that had grown long bendy legs.Anon
- my grandma told me not to eat pizza coz the "brown squiggly" stuff there arent burnt cheese but WORMS!
— Mimi - I believed that the gap between the double yellow lines in the road was a special lane for motorcycles.— Joel
- I thought for the longest time that a No Standing traffic sign meant no person should stand near that sign.— Shannon
- when i was little i always asked my mom if my aunt had ant legs or people legs.— kelly
- i used to believe that red yellow and green meant "ready, set, Go!" on traffic lights..— cabagona