Actually - thinking about it, when I first met the lady who later became Mrs.Duck our conversations almost always consisted of lines from songs. It bacame a bit embarrassing when we were making romantic comments, and almost every one of them had already been used and published. It made it hard to take the process of being romantic seriously.

Mind you - I also come from a background of scientific research papers, so I expect any quote to be accompanied by reference to chapter and verse of the original.
Quack!
GtD.