Now, now, Margaret. My brains are just fine, yet I thought for a whole year that the previous line in that Jethro Tull song was "Let me bring you corn from the fields..." I hope your assessment of that kid's brain power was based on more than that.
I used to imbue certain of Paul Simon's songs with more angst and pith than they already contained. One of many examples: in Bridge Over Troubled Water, I thought the line was "...and pain is all our love..." (and pain is all around)
In my household we called it the Petticoat Problem, as we once heard a "take-myself-too-seriously" chantey singer sing in I'se the Bye: "Sally White, she's out of sight, her petticoat won't support her..." (really it only "wants a border"). In a pub sing I once witnessed an earnest young man mangle the words to Rolling Down to Old Maui as follows: "Our stencil bones are carried away..."