I'm not even sure of the name of the song but I know that I used to sing:
"You picked a fine time to leave me Lucille, with four hundred children and not a crop in the field"
But the actual lyrics were:
"You picked a fine time to leave me Lucille, with four hungry children and a crop in the field"
Believe me, my parents used to have me sing that for people all of the time!
Oh yeah, and I used to mess up Jingle Bells too, I'd sing it "horpin snorpin sleigh"
A childhood belief about misheard lyrics

others believed things like this
- I used to think Kenny Rogers had 400 children and a crop in the field. Rather than 4 hungry children.Anon
- in the song "show me heaven" i used to sing "make me breakfast" instead of "leave me breathless"Anon
- My brother was listening to The Corrs and instead "leave me breathless" he would sing "give me breakfast".Anon
- Did anyone else sing "Hark, the hairy angels sing"?— Jill
- My mum said that when I used to sing "noahs arc" at school I would sing "who built the arc, no one, no one"— Clare
- I thought that singer/songwriter was spelled this way: sing-a-song-writer...Anon