I thought it was someone's job to change traffic lights and that every intersection with a traffic light had an underground office where someone was watching traffic via a camera and pressing buttons to make the lights change.
A childhood belief about traffic lights

others believed things like this
- For a very long time I believed that there were little men underground that changed the traffic lights!— Melissa
- When i was little i always thought there were little men inside the traffic lights changing the light— Kiley
- My dad could change a traffic light from red to green using our garage door opener.Anon
- I used to believe that the yellow light in traffic-lights meant Go Faster!— M. L. E.
- I used to beleive that little drawf men were inside each traffic light, making them change colors. — alisha
- I believed that traffic lights had police officers inside them, turning the lights on and off...— CrowHeart