Sooooo I have some questions about the NPCs and violence.

1. How do most NPCs react to violence, both provoked and unprovoked? Like how much leeway do we have here with how docile or belligerent they can get?

2. Are there ever any NPCs programmed to act aggressive, hostile, or violent to the PCs and under what conditions? Any who act like gangsters or yakuza or thieves?