This is outrageous! I was replaying The Witcher 3, and when I got to the A Hallowed Horn quest, I remembered that last time, Mithias got annoyed at me for killing the thieves. So this time, when I got to the thieves, and already knew that the horn was in a chest, rather than any of the thieves inventories, so I didn't actually have to kill them, I took care to not kill any of the thieves, while still retrieving the horn - which was a difficult job, as I couldn't loot the chest while the thieves were nearby, so I had to lure the thieves away from the chest, then circle back, and in the extremely narrow time window between when the battle music stops, and when the thieves return to the chest - as they start to return immediately once the battle music stops, loot the chest - made even more difficult by the game's janky input mechanics, where it seems to treat all inputs as a queue (moving, pressing 'e' to loot, etc), so I had to make sure not to queue up too much movement so I could quickly loot the chest before the thieves returned - anyway, I did it, after a lot of effort and time, and the cheek! Geralt still said that he killed the thieves when talking to Mithias, as if all that effort to not harm a single hair on their heads was for nothing!