It occurred to me recently that in this 'How to finish a book' series I've tended to write mostly when I'm feeling negative about the work - to berate myself, or create excuses about other stuff I've been busy with, or just defiantly state how far my output has subceeded my plans. I consciously intended to do a bit of that, at the outset. I like the recent trend of academics talking about all the rejections and failed experiments they've endured, to balance out the normal misleading bias towards only talking about successes. Plus, I think it's important for parents especially to be real about just what they're up against when they try to do more than just wipe stuff up and dispense snacks.
On the other hand, I might have gone too far and given the impression that my book is way behind schedule, that I never get anything done.