When I was very little I distinctly recall Mom telling me to watch out for fish bones when eating fish, becuase if you accidently ate one, it would travel through your bloodstream and pierce your heart and then you'd die. I confronted the family with this a few years ago, and they denied it, of course.
A childhood belief about dangerous food

others believed things like this
- i used to beleive the ice cream man was a fish man - becuase i hated fish.— jordan
- 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
- I used to believe eating fish enables me to live underwater and eating veggy makes me prettier!— Melody
- Burned fish fingers ment the fish was from the black sea.Anon
- i used to believe the white part in fish meat is because of the fish's milk— Kim
- i used to believe that scampi was fish toes instead of fish fingers....Anon