Hi therem
Don't know if this would be considered a worthwhile exploit or not but if you do the quest series in Nagrand that takes you to the bar. The one where you have to collect the debt from 3 diffrent npcs - Well don't turn in the quest, just keep asking the ogre at the bar for the debt and he will continue to respawn within 5-10sec of death and drop about 50 silver each time. He's really easy to solo and you get rested xp while you do it.
I eventually turned in the quest after killing him 50 times out of sheer bordum, but maybe someone can use this to a more sinister means. . . .
Hf