Just When I Think I Have a Clue

I've written about 2500 words in the last two days, and they're not even bad words, which is nice (although I do not doubt that some of them will be removed later and returned to their box for subsequent reuse). But a whole scene I had not planned upon has suddenly come out of the everywhere into the here, which will require some jiggering of already-written down-the-line stuff. Note to my subconscious: Warn a fella, wouldja?