I thought that mustard gas was made from mustard (like the food) I also thought there was a such thing as ketchup gas which was even worse!
A childhood belief about dangerous food

others believed things like this
- My mom used to tell me if I ate mustard I would grow mustard.Anon
- My friend believed that eating bread crusts or eating mustard will give you curly hair.— Linda from Southern California
- the beatles song 'mean mr mustard' says "shes a real go-getter", i was sure it was "shes a real coconut"...— sally
- When I was little, I thought ketchup came from ketchup trees— cristina
- i thought salt made food cold, since pepper made it *hot* — cattiva
- I thought when you got food poisoning it might someone had put poison in your food— Bootlebat