I used to think the song in those old Cal Worthington car commercials said "Pussy Cow" instead of "Go see Cal".
A childhood belief about adverts

others believed things like this
- I used to believe that kittens came from pussy willows.— hope
- I used to believe that commercials would only go away when you bought the product that was being advertised.— Hayabusa
- Thanks to the commercials,I believed that Philadelphia Cream Cheese was made by Jesus.— Too Literal
- When I was younger I thought that if I ate Gusher's, my head would turn into fruit, like in the commercialsAnon
- When I first heard Bruce Springsteen's song, "Born in the USA," I thought that the song was "Porn in the USA"Anon
- i thaught the michael jackson song billy jean song said Janet's not my son Anon