We discussed the power of writing fragments in a narrative to create rhythm and balance to a work. Once you know the rules you can break them without fear of criticism for doing something ‘wrong.’ There is no wrong in fiction. Regardless of whether Microsoft word gives you the terrifying colored line under your words, nothing is stopping you from doing it anyway. Sure, it could come across as sloppy. So what? They said the same thing about Pollack. He did okay for himself. Plus, somewhere in between sloppy and completely clean is a thing called style.
Just ask a jazz musician.