A childhood belief about classes

When I was in the early grades, my teacher told us to bring manila folders to school the next day. I thought she said Vanilla folders, so I went home and told my mother than I needed to bring a vanilla folder to school. She had never heard of them, of course, and, after calling several stores asking for vanilla folders (because i insisted that that was what the teacher said), and getting no satisfaction, she finally called the teacher (much to my mortification), and was informed, after the teacher quit laughing, of the correct kind of folder, we had to go into the next town to get them, because my mother was too embarrassed to go to a local store and admit her mistake. I still sometimes make the mistake of calling them vanilla folders.