I used to believe that the sky had stop lights and road signs floating about for the airplanes.
A childhood belief about aeroplanes

others believed things like this
- I used to think that Mice controlled the Stop lights and crosswalk signs.Anon
- Street signs with the upward pointing arrow was for airplanes. — Tammy
- Having seen enough red octagonal STOP signs in my time, I used to look out for green circular GO signs.— Gary
- My nephew, at around age three, used to say that airplanes trailing white exhaust were "airplanes on strings".— Mojo!
- I used to beleive that road signs grew out of the ground.— Tiana
- I used to see "End Road Work" signs, and thought they were a sort of protest.— Sebastian