Previews have gone into some detail about the unique monster artificial intelligence in Gothic, and how the monsters are able to cooperate. Some are hunters, some are prey, some are somewhere between these two, and the troll is actually best being let alone. If the player comes up to a prey, it will try to flee. If cornered, it will warn the player to leave and if still not left alone it will attack. The less the monster is a prey the earlier it will attack and not even warn the player.
Worst case are the hunters which hunt in packs.
By giving names like prey and hunter, it should be known how they behave when they meet each other. Contact us for more information on GameSpy Industries.