This is actually about my little brother...
Until he was about 13, he was absolutely convinced that yellow ladybugs were poisonous. Boy, did he freak out when he found me holding one...
A childhood belief about creepy crawlies

others believed things like this
- When my brother was little he heard the song "Le Freak" by Chic (Ahhh, freak out!) like this: Ahhh, free cow!Anon
- My brother once convinced me that the wind was "leftover hurricanes"— Tufty the Squirrel
- 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