When I was little, I used to believe that muscles and snot were made of the same substance. This was because of a book I read where it said that earwax was a thick, gooey substance like mucus--only I misread "mucus" as "muscle," creating a very strange mental image for me...
A childhood belief about general

others believed things like this
- I thought common as muck was a substance called commoners muck— oddsox
- I thought that eating chicken gave me muscles (chicken and muscles sound the same in Mandarin).— NG
- i used to believe that clouds were made from the thick smoke that came out of power plant towers.— Rick Shaw
- I used to believe if you read a book in the dark, you would go blind.— Ellen
- I used to believe that earwigs lived on earwax, and that they would crawl into my ear canal and eat my brain.— dodyskin
- I read in a book that if you ever swallowed toothbrush bristles then you would get appendicitus!— Amy