The UK has box junctions (I don't know whether other countries have them) at some traffic light controlled junctions. You are not allowed to stop in the box when traffic from the ahead is queuing back to the junction. I thought that the yellow box held a load of glue and you could only avoid getting the car tyres/tires stuck on the box if you were driving fast enough across the junction!
A childhood belief about traffic lights

others believed things like this
- 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
- When I was little, I was thought that little elves controlled the traffic lights..— Rosie
- I thought traffic lights were controlled by little men who lived inside them. Anon
- I used to believe that God controlled the traffic lights. He would decide when it was everybody's turn to go.— Amanda
- i used to beleive that elves controlled traffic lights.— Jessica