In kindergarten I thought the tail end of shrimps were poisonous so I would meticulously cut off the ends. I remember thinking it was odd that my school would leave poisonous items on food kids were eating. I have NO idea where this belief came from.
A childhood belief about dangerous food

others believed things like this
- I know this isnt a huge funny belief, but I used to think that all spiders were poisonous. I love spiders now!— Sammy
- that the green bit of cucumbers was poisonousAnon
- I used to believe that the dust on top of doors was poisonous.— draconid
- Dark brown Smarties were poisonous.Anon
- I used to think if a tornado sucked up a poisonous mushroom, it would die.— Will
- My mum used to tell me that you couldn't drink water out of the tap from the bathroom as it was poisonous.Anon