My grandfather told all kids that when the lights blinked, it was because "a fish went through the dam". We believed if, not sure for how long. I do know my Mom was in college before she found out otherwise!
A childhood belief about technology

others believed things like this
- I used to believe that a fish cake was a fish in sponge and coated in icing. I believed this until I was 9.Anon
- For a very long time I believed that there were little men underground that changed the traffic lights!— Melissa
- My sisters once told me if I blinked too much I would get cancer.
How mean... D:— Budster - I believed that traffic lights had police officers inside them, turning the lights on and off...— CrowHeart
- i used to beleive the ice cream man was a fish man - becuase i hated fish.— jordan
- Burned fish fingers ment the fish was from the black sea.Anon