What are they Mumbling about?
Stop Mumbling, I don't understand!
Why is she Mumbling to herself?
Oh, and now the Mumbling starts.
I was Mumbling behind your back.
I'm sorry, what were you Mumbling?
No, I was just Mumbling to myself.
I'm not Mumbling, to hell with you!
Yes. And why don't you quit Mumbling?
What are you Mumbling about? What's wrong?
What are you both Mumbling about? You don't need to work?