Misconceptions we had when we were kids.

[Demonhero]

I thought traffic light were controlled by a underground base.

Me too.

I didn't have many misconceptions, none that I can think of off-hand.

But my brother, used to think the urine was flamable.
He also thought that rain was constant. As in, if it starts raining, a rain cloud has moved over, and that cloud would never stop raining.