Season 16, Episode 6 - "A Sentence of Sorts in Seattle"
Roz decides to attend night school to improve her English skills after a poorly-written memo is passed around the station. Under Bulldog’s advisement, Roz starts writing everything down instead of speaking in a unique way of memorising the information. When a spelling mistake results in Roz developing an unflattering reputation, she desperately tries to make peace by writing an apology letter. Realising she has learnt absolutely nothing from the experience, Roz throws away her whiteboard and starts speaking again. Taking the opportunity to give the people who annoyed her a piece of her mind, Roz ends up saying a little too much and her reputation becomes a lot worse. In a twist of irony, Roz loses her voice when flu season hits and is forced to write everything down after all.
