About today's writing prompt genre: Take the following story aspect and work it into a piece, whether poetry or prose, whether you explore what led up to this place in the story, it begins with the thread, or the thread is merely a tiny aspect of the story that has crystallized around the original image. However you choose to write it, use the following as a jumping off point.
Today's thread is...
After the lights have been turned out, all the punctuation in a book gets together and gossips about the words.
There could be a sort of class separation of words and punctuation, similar to the bar in Antz where worker ants and soldier ants have their own hierarchies, perhaps punctuation marks stick with the words that they're attached to and are either buddies or maybe even like conjoined twins. Maybe the punctuation from multiple books get together, similar to how video game characters interact in the movie Wreck-It Ralph. (Why I'm on a cartoon kick, I'm not sure, but this thread seems to lend itself to the non-real). How do the similar marks react to each other? Do commas have a clique that picks on em-dashes? Are periods know-it-alls? Do commas from lists have a chip on their shoulders, or is punctuation used stylistically as opposed to 'correctly' picked on or made fun of behind their backs? Many options for this, but I would definitely be sure to have fun with it.