Im on the quest "The Brownie Den, and my follower (the guy from the house) tries to shoot arrows at me and kill me. I cant figure out how to get him to stop...
If you get close to him/her when attacking you can press up when prompted and kill him. But most of the npc's that follow you into raid/dingeon are people you get quest or rewards from. I generally keep mine alive and just use main weapons like fae blades or daggers on enemies. Akyle.bryan