I used to think the phrase "Cats have nine lives", meant the reincarnate nine times. So some things involving the phrase confused me.
A childhood belief about cats and dogs

others believed things like this
- I thought the phrase "At one's disposal" meant you should dispose of the person or thing.— Geirskogul
- i thought that the phrase "jet lag" was actually "jet leg" until i was 17...— truffles
- The phrase 'Recycled toilet paper' always worried me.Anon
- I used to believe all Italian women were named Mia because of the phrase "Mamma Mia!"Anon
- I used to believe that the phrase "Mamma Mia" referred to a girl named Mia.Anon
- I used to think that the phrase "It's a dog eat dog world'' was its a dogey dog world.— Gabral