After viewing a particularly violent TV ad for the Confidential Telephone (this is 80's Northern Ireland), I became convinced that confidential meant something awfully, horribly sinister. I asked my ma but wouldn't believe her when she told me. I was old enough to look it up in a dictionary, but I was too scared.
A childhood belief about telephones

others believed things like this
- I used to think that County Durham was in Ireland.Anon
- I used to believe that Ireland was called that because it really is an island!Anon
- I used to believe lepers came from Ireland. Like leprechauns, only with less body parts.Anon
- When I was young I thought the IRA was like the IRS and that Ireland was overrun by irate tax collectors.— jhager
- That "Twim Peaks" and Northern Exposure were the same show.— LongLiveRock
- I used to think that tampons were meant to absorb women's urine so they wouldn't have to go to the bathroom.— Koyaanisqatsi