When I was young I used to believe that "traffic light changer" was an actual occupation, and it involved sitting in a little office underground at an intersection, with something like a submarine telescope which stuck out of the ground above you so you could watch the traffic and know when to switch the light from red to green.
A few years went by, and I explained my theory to my dad, who then proceeded to enlighten me, that they actually worked by laser beams that shoot lasers down the road that count how many cars are there wating, so they know how long to hold the lights for.
Thanks dad.
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
- that the green traffic light turned blue when it was off— Kriket Evens
- When i was little i always thought there were little men inside the traffic lights changing the light— Kiley
- I used to believe that the yellow light in traffic-lights meant Go Faster!— M. L. E.
- I used to belive that there was a god living in every traffic light, controlling the traffic!— Sukhi
- My dad could change a traffic light from red to green using our garage door opener.Anon