Can't recall the exact name of the quest but its given by a lord and asks you to look into a village on the verge of revolting. Turns out there is a corrupt tax collector... when you attempt to turn him in.. he will unleash his 2 bodyguards to attack you.

1. When you kill the bodyguards in the vicinity of the tax collector... he triggers his dialogue and allows you to complete the quest.

2. If you kite the bodyguards away from the tax collector and kill them a fair distance away from the tax collector... his dialogue does not trigger... and you are stuck permanently. You also can't leave the map because "The Duel is not completed"