In this quest:
http://www.uesp.net/wiki/Morrowind:Armor_Repair_Debts
the duel with Giras is always to the death, and he never yields no matter how much damage he had taken, even though the uespwiki instructions indicate that he should yield once taken enough damage.
Another "duel" quest where the NPC seemingly wants to fight to his death, despite uespwiki stating that a non-lethal resolution should be avaliable:
http://www.uesp.net/wiki/Morrowind:Ondres_Nerano%27s_Slanders
Fixed as well. I've also added a check so this quest is not given is Ondres Nerano is already dead.
Fixed.
Fixed.