What's it like writing a book?

Merlin's (of the 43 Folders blog) latest podcast is about writing a book. The best part:

"Writing a book in three months... is kind of like doing rectal surgery on yourself in the middle of a traffic jam while it's raining frogs."

Considering that this week I'm actively writing my searching book and working on the first galley of my Bloggins & RSS book, I can relate all too well.