My cousin told me that he had a frog in his knee then he flexed his knee cap so it would twitch and that sealed the belief.
A childhood belief about general

others believed things like this
- I used to think that your knee cap was called your knee ball.— Erika
- When I was a little kid and fell down and skin my knee, I used to think I was skinning my kidney.— G. Dedrick
- My father told me tapioca was frog eggs in pudding. I still can't eat it!Anon
- The old classic by the Go-Go's "Our Lips are Sealed" I used to think they said "honest I see you"— Euge
- My cousin's mom told my cousin that pop makes you short. He probably believed it.— Molly
- My aunt always used to tell me that if I swallowed gum, I'd turn into a frog!— Deana, Las Vegas, NV.