When I first started reading, I eventually came across names like Mr. Jones and Mrs. Smith and whatnot. But my little mind didn't fully understand the concept of abbreviations and thought Mr. was pronounced Mer and Mrs. was pronounced Mers.
A childhood belief about reading

others believed things like this
- I used to think that heater was spelled "header"(which i didn't know was pronounced hedder)— Olivia
- I used to believe that Will Smith's name wasn't Will Smith, but that it was World Smith.— Scott
- i thought the name Anon, was really a name...pronounced A-Non...haha i figured it out— Norman einstien
- Until very recently, I thought "archives" was pronounced like "are chives".— Mitsuki
- I thought that polystyrene was pronounced 'polly-STEE-LEE-an'.— Polly Stairiin
- When I was little i thought lb for pounds was pronounced lubs, and i called them that for 2 years. Anon