I used to have the hardest time with the concept of 'Sugar Free' chewing gum. I wasn't sure whether it meant you got free sugar with the gum, or if it was just extra sweet.
My friend went to this camp called 'Sugar Free Kids'. I had an especially hard time with that one.
A childhood belief about chewing gum

others believed things like this
- 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
- 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 - My mum told me that if I ate sugar from the sugar bowl I'd get worms.— QueenB
- When I first heard Matt Monro's song "Born Free," I thought he was singing "Porn Free."Anon
- When i was a tiny lad, I used to think drug free zones were places where you can get drugs for free— Spencer