Okay, so.. there's this Physechadelic Furs song where the lead singer (who is very Britishy I might add) says "Back in the Government" and I, of course, am listening to this on a cassate tape in a 25 year old car. I can't decipher the lyrics. So I just ask aloud "Okay, am I crazy or is he saying 'Bark I'm a Doberman'. If you sound it out, they're quite similar, I promise.
The shameful part is that I was sixteen at the time. I hear the 'correct' lyrics when I listen to it now.
A childhood belief about misheard lyrics

others believed things like this
- Actual lyrics: "I've never been your beast of burden"
My lyrics: "I've never been your big suburban"
— Big Suburban - I used to believe that Prince was the lead singer of Queen— Garrett
- in the song with the lyrics "take your passion" my sister used to always think it was "take your pants off"— Steped
- I was sure that Led Zeppelin was the lead singer of the Rolling Stones.— dave
- My mum always thought the lyrics to macy grays song was i try to say goodbye to my chook.— alana
- i believed that michelle gayle's sweetness song contained the lyrics shade in sheep shit!— andrew