There are plenty of complaints about the NPC’s lack of reaction to happenings around them at the witcher forums. I was Idling in Flotsam (Act I) when it started to rain and suddenly noticed how the NPC’s ran to take cover from the rain. They caughed, complained and went back out in the sun when the rain was over. I instantly recalled the complaint and thought, „there you go, idiot!“. I absolutely love these details in „The Witcher 2“.