One of said comics went somewhere along the lines of:

Demon: Do you have to argue with me about absolutely everything?
Angel: Of course I do! It's my job, darnit!
Demon: Well, would it kill you to just let me have this one?
Angel: I dunno, I'd feel pretty bad.
Demon: Wait... You have a conscience?
Angel: I'd be pretty useless without one, wouldn't I?
Demon: So... Have you got another 'us'? How does that work?
Angel: Isn't it obvious?

Zoom in on Angel to show two smaller, more exaggerated Angels, one hovering over each shoulder.

Left Mini-Angel: Huh. He's kind of got a point. What about you, Phil?

Zoom in on Right Mini-Angel to show an even smaller, even more exaggerated Angel and a Demon that looks a great deal more threatening than Gary's counterpart.

Mini-Mini-Demon: *Leans into Mini-Angel's ear* ... Don't tell him.

Also,



Later repeated with Peter's Angel now present. Faced with a dilemma, the Angel turns to his own conscience...

Peter's Angel's Devil: Tell him to keep lying! He's in too deep!
Peter's Angel: Where's the other guy?