I believed that the road sign meaning 'road narrows' meant be careful because there are glass bottles littered on the road ahead. I believed that the sign meaning 'end of speed restriction' was reminding you to wear your seatbelt (white circle with black diagonal line). And I also believed that 'soft verge' meant that there was a roadside fruit and veg stall coming up soon.
A childhood belief about road signs

others believed things like this
- When I used to see a sign saying "Littering Fine" I thought they meant if you littered REAL GOOD!— Lou V.
- I used to believe the "Yield" from the road sign was somebody's name.— julia
- i always thought that a DEAD END sign
as where they put all the road kill.
— pav - I used to think that we were breaking a law every time my mom passed a "Do Not Pass" sign on the road. — Kyra
- my mom believed when she was little that a street sign that said don't walk meant you better run.— Sara Mclen
- i used to think that the road sign "dangerous" was actually "dang-er-roos" a kind of bouncy marsupial— owen cash