Food:
My family used to (and still do, if truth be told) call Garibaldi biscuits 'Dead Fly Biscuits' Like a little fool, I thought they really did contain dead flies - tasty though!
A childhood belief about nasty food

others believed things like this
- i would never eat biscuits with currants in because someone told me they were flies.— ahab
- My dad told me that raisins were the dead flies from the windowsill— Kellie
- I thought pink wafer biscuits would bite me if I touched them. Absolutely no idea why.Anon
- I used to think that raisins were dead flies. I only recently started to eat them again.— Toinette'
- I used to think bogies were made of dead flies which had flown up my nose.— Kate
- I used to believe that a street sign that read "Dead End" meant that there were dead people buried there.Anon