In battery powered toys, I used to think that when the power had run out, the batteries actually used to disappear altogether. It actually turned out to be my older sister who used to take the batteries from my toys to use in her remote controls for TVs and Stereos.
A childhood belief about toys

others believed things like this
- I used to believe toys came alive at night.
Because I love toys, and I hoped be good friend with my toys.Anon - my nephew used to believe that when people died, they just needed new batteries.— p-daddy
- I used to believe that I could make a laser by putting more batteries in a flash light.— Tyler
- I used to think that putting batteries in your ears could electrocute your brain. Hahahaha.Anon
- I used to suck on the ends of batteries intent on gaining super electric powers. Anon
- i used to think that at night all of my teachers turned into my soft toys so they could keep and eye on me.— paranoid