Dear Michael K.,You're right, it is crass. And following your analogy, you would seem to be saying that all we songwriters end up producing is crap (to avoid the other word). Sorry, can't really 'go' for it, if you know what I mean.
I think I would much more prefer a gardening analogy -- you know, planting a seed and watching it grow, etc., to your idea of the songwriting process.
-- Áine