Oh yes, turning your back is rude, because that indicates the conversation is done. So unless it is finished... turning away is rude. I was just thinking about the lip reading.
I'm all for experimenting with this new idea of yours though. See how it pans out.
Whoo for edits! We like edits here we do. lol And don't worry about stretching. If it doesn't stretch it doesn't stretch and therefore doesn't need to, but the length'll come with time.