The theme song to The Wombles includes the line 'the wombles of Wimbledon common are we'. For years (until I was well into adulthood) I thought this meant that the wombles were not posh because they made their living picking up litter.
A childhood belief about tv shows

others believed things like this
- "The wombles of Wimbledon Common are we" meant that there were loads of them...— Mike
- I used to believe there were loads of Wombles, until about a minute ago...— Nat
- Well into adulthood I thought that a local anesthetic meant one from the area near the hospital..— D'sparil
- I used to think that the actors on tv shows sang the show's theme song.Anon
- Until I was about 15, I beleived my Father was the person who sang the "Cheers" TV Show Theme Song.— Dustin
- When my daughter was 3, she saw a cat using a litter box. She thought it was building a sand castle.— Debbie the Bad Swimmer