His immediate first response is simply a distracted "Hm." He knows that there are definitely some around here who have alternatives to killing, but this is definitely his first time to see one of these methods and, despite the morbidity of the situation, he can't help being a little intrigued. He opens his mouth to ask another question, hesitates, and changes his mind. This man is obviously busy exhuming whoever this unlucky human used to be - that idea bothers Klaus a little bit, but considering the circumstances he certainly can't blame him.

He debates leaving this man to his work, but somehow it seems rude to ask such a blunt question and then just leave. Besides, something about this stranger fascinates him. Not to mention this is his first real encounter with another troll.

"Would you like some help with this?" Klaus gestures to the grave. He knows how heavy a corpse can be, and there's a chance that some extra labor might help him further clear his head. "It doesn't look like you have an extra shovel on you, but I could assist with some lifting," he offers. "If you need it, that is."