When I was very young, I used to believe that salt and sugar were opposites. Once, (maybe more than once), I ate enough sugar to get sick. So I tried to then eat salt as an antidote. It didn't work as well as I anticipated.
A childhood belief about general

others believed things like this
- Salt is bad tasting sugar.— cobra
- Salt is sugar from a different country.— Santa Puncher
- When I was a little kid I thought that salt was some form of an aged sugar.— Jodie
- I thought that a "sugar daddy" was a father who let his kids eat all the sugar they wanted.Anon
- adding too much sugar to foods would give you "sugar worms"...
Anon - I used to believe that when cordial drink said 'sugar free' that you didnt have to pay for the sugar in it!— Grace Lyon New Addington