[The big troll's reaction is instinctual - no small, soft creature like this is going to try and threaten him, even if it's in a language he doesn't comprehend. He has enough self control not to just swipe his claws across the boy's throat - it's his son! - but one huge hand shoots out and pins Kurloz to the wall with casual, brutal strength, holding him in place.]

STAND DOWN, YOU WILL NOT THREATEN ME, CHILD. [His voice is thunder, the kind of voice a real troll would use to show dominance over a weaker one.] DO YOU UNDERSTAND?