With thanks and credit to Chuck Wendig, who posted the instructions for ruining things on the first day of NaNoWriMo 2018.
Chuck's instructions and many other excellent words here: http://terribleminds.com/ramble/2018/11/01/here-is-how-you-nanowrimo-you-ruinous-monster-you/
I don't intend to ruin a novel this year, but perhaps I can ruin a blog.