I used to think the line in Pink Floyd's Another Brick in the Wall was "No dogs allowed in the classroom."
A childhood belief about misheard lyrics

others believed things like this
- Pink Floyd- Brick Wall.
I used to believe it was "we don't need no fart control" in the second line there.— Norwegian Dude From Kopervik - My mum told my older brother that dogs weren't allowed in London.— Fiz
- The line 'The dark sacred night' in What A Wonderful World is actually 'The dogs say goodnight'...— rebecca
- I was sure my stuffed dog "Floyd" could talk, but he chose not to.
— Cyn - i knew that if you ate beets your urine would turn pink and i thought if it was pink, then you could drink it.— JP
- I thought pink lemonade came from pink lemons.Anon