While browsing around Tarren Mill, a level 50-something troll mage challenged me to a duel. He insisted, so I accepted. Since I had no hoping of winning, even with the most devout level of endurance and focus, I decided to just be the biggest PITA to kill.
By placing distracting totems and breaking line-of-sight to prevent spells, I was able to delay my defeat for a couple of minutes. Anyhow, for being a chore to kill, the mage rewarded me by helping me clear out a few quest mobs that I could not tackle on my own.