Greg, because I'm a polite person I try to make allowances for Queen Joan Approximately's insistence on "enhancing" Bob's performances. After all one used to get similar, er, "harmonies" in English folk clubs. And I liked Joan singing Plaisir D'Amour, but then I was 17 or something.   

But I've got to say both my daughter and I have now both been caught yelling "SHADDAP JOAN!!!" at the TV. And my son's reaction on walking in from the pub just as she was howling along was....unprintable. He is a Motley Crue fan though so what does he know?