I used to believe that cats' eyes in the road were the dwarves' lanterns shining as they came home from work - and the reason you couldn't see them on the road when you looked behind was because the dwarves had been scared by the car and turned them off to hide themselves.
A childhood belief about road signs

others believed things like this
- I used to believe that the cats eyes in the road...reflectors...were the eyeballs from real cats.— Liza P.
- I used to believe that cats eyes were lit up by a man running under the road with a torch— Martin
- I used to see "End Road Work" signs, and thought they were a sort of protest.— Sebastian
- I used to believe green houses were made of icicles, because that is what they looked like from the road. Anon
- When i was little i was so scared of cats, because i taught the turned in to tigers if you saw them.Anon
- I used to believe that tornadoes were spinning jack-o-lanterns in the air bent on destroying my house.Anon