He is a guardian, the guardian of rage, and he shows and embraces it, despite being a well mannered guardian. He is also will not tolerate any insults thrown towards him, so he uses this to his advantage by intentionally making disturbing and off-putting things inside his manor and his clothing, waiting for you to insult him. Once you do that, he will erupt with rage and rip you apart in an almost animal like fashion, as he has immense strength and speed. Turning fouler in language if you do.