I used to beleive that bidets were something you washed your feet in I still think it is actually practical to do.
A childhood belief about bathrooms

others believed things like this
- I used to think that bidets were for washing babies!— Helen
- Washable markers could actually be washed off of paperAnon
- I never used to take shower after going to the beach, because i thought that tans washed off right away.Anon
- When I got my feet measured by the electronic machine, I thought that the machine will squash my feet!— Helen
- I always wondered why shepherds washed their socks by night. (correct lyric: watched their flocks)— MaggieNJ
- I used 2 beleive yer @$$ was yer foreheadAnon