I always thought that the lyrics to Billy Joel's "We Didn't Start The Fire" were "Trouble in the sewers" instead of "Trouble in the Suez."
A childhood belief about misheard lyrics

others believed things like this
- I used to think that Sylvester Stallone and Billy Joel were the same person.Anon
- I thought that "Doube Bubble Toil and Trouble" was "Doube Bubble, Toilet Trouble" Anon
- When I was eight, I loved Madonna's "Papadompe Beach." Didn't get why she was in trouble, though....— tncatboy
- i used tothink that uh-oh oreos ment they caused trouble— 3605cutepuppy
- At nights, when I have trouble sleeping, I used to hear large footsteps - something like the Godzilla.— John
- In old west lore, Billy the Kid was called 'buck toothed'. I thought this was because he sucked his thumb. — Monty