As a kid in the 70s and 80s I amassed a large number of annuals, or bumper comic (book) hardbacks which came out to coincide with the school holidays. Some of these had a "serious" feature designed to give you an idea for something to do apart from read comics, and although I generally ignored these, one, headlined "Youth-Hostelling", intrigued me for a long time. I didn't know what the term meant, but instead of finding out (or reading the feature) I tried to work it out by myself, concluding that it actually said "Youth House Stealing", and that the article warned against getting involved with large gangs of young criminals who stole houses.
A childhood belief about reading

others believed things like this
- When I was young I used to believe that Euthanasia was a youth movement in Asia- how naive is that!!!— Ruth
- My mom thought "euthenasia" meant Asian kids.(youth in Asia)— Ibelievedher!
- For many years I didn't understand why everyone was talking about the 'youth in Asia' (euthanasia).Anon
- I recently found out that Euthanasia is not Asian youth.Anon
- I used to believe that "euthenasia" was "youth in Asia", and I couldn't figure why that was A Bad Thing.— Kellye
- In my youth,I was always convinced that my chocolate easter eggs came from my uncles chicken farm!— Jamsie