I used to believe that if you touch the "metal" end at a lightbulb you`d get electric shock and die. to this day I still avoid holding a bulb at the end.
A childhood belief about chemistry

others believed things like this
- i believe that using gold give electric shock at the time of lightning.so i didnot wear gold when rain starts.— asi18
- I used to believe that Metal music was when a bunch of people would bang metal together to make noise. Ha ha.— Kassandra
- I used to think that if you shone a flashlight beam onto a lightbulb long enough, it would eventually light.— Karen K
- In "God Bless America" I thought it was "With the light from a bulb" instead of "from above."— Carol
- I use to believe if I ate something electronic Id have electric powers — jack L
- I used to think that if you put geraniums into electric switches it would blow up the whole world!— Steve Jeffs