As a child, I could never figure out how the traffic signals knew when to change from green to yellow to red and back to green. After much puzzling over this mystery, I decided that there must be a person in the sewers at each intersection who would flip a switch whenever it was time for the light to change. I couldn't imagine why anyone would want such a job!
A childhood belief about traffic lights

others believed things like this
- My dad could change a traffic light from red to green using our garage door opener.Anon
- i used to believe that red yellow and green meant "ready, set, Go!" on traffic lights..— cabagona
- that the green traffic light turned blue when it was off— Kriket Evens
- I used to beleive that little drawf men were inside each traffic light, making them change colors. — alisha
- I used to think that on day light savings time you had to stay up till 2:00am to change the clocks! — Sandy
- I used to believe that the yellow light in traffic-lights meant Go Faster!— M. L. E.