Norgrim Grimsson hates the idea of danger in any proximity to his person, that's why he chose to become a Dwarf Ranger and brave the untamed, deadly wilderness of the outside world.
He is a Dwarf of many contradictions. He also talks to some nebulous audience in his mind and sometimes in public without realizing and gets the side-eye because of it.
He is in the eyes of many, himself grudgingly included, at least a little bit insane.