During the Favor on the Side Quest in the new area in 10.1, you have to talk to patrons of the games and tell them they are party crashers. They will attack you and you have to defeat them to get credit. In clicking on some of the NPCs, it started the battle and I was able to get their health down to 2 (0%) but they didn’t run away like some of the others. Instead, they just followed me and kept attacking without any day to defeat them. One was a drogbar and the other was one of the new (and pretty awesome) Minnesota Mole Rat people.
Hope this report helps.