Grinwhite

Phoenix Tavern
Before The Swiped Signet quest is bestowed:
 * Grinwhite: Those rag-gatherers! Those scum-suckers! A Quickfoot thief snatched my while I was inspecting some potions. Jorasco's badge in a trashmonger's hands! What a humiliation! If you can get it back, I'll pay you a thousand... no, a hundred... oh, let's just say an 'ample' number of gold pieces. Are you a coward, or do you want the job?
 * You: Start counting my gold. I'll be right back
 * Grinwhite: I'll count your gold when I see again. Now get moving! (Bestow quest)
 * You: I'm no coward, but I do hate sewers.
 * Grinwhite: Lazy and shiftless, eh? A common affliction among your class. Mark my words, you'll be stealing for your own supper before too long. (Walk away)

Before The Swiped Signet quest is bestowed but before completion:
 * Grinwhite: Where is it? Did you find my ? I'm not interested in your excuses!

After The Swiped Signet quest is completed but before reward is taken:
 * Grinwhite: What happened to ? It's filthy! It's ruined! It's nothing but trash! I won't pay good gold for rubbish. You'll just have to be satisfied with whatever reward I dig up for you. And you can keep that piece of junk too! Or better yet, throw it away. That's what I'd advise!
 * You: Is that so? You'll regret cheating me, Grinwhite.

After The Swiped Signet quest is completed and after reward is taken:
 * Grinwhite: A month's pay, drowned in the sewers! Well, at least you killed the fools who stole it from me. They struck a hard bargain for their useless lives.
 * You: Repeat this quest. (see "Those rag-gatherers!..." above)