I believe in leavening. You can't have words sticking out too much, like promontories. They disturb the density. You have to flatten them, or raise the surrounding terrain.
Many actors have protested about mobile phones going off in theatres, but the real menace now is people texting during a show. It may only disturb a few people around them, but for me, as an actor, when I spot them answering their emails, I am outraged.