"And just who are you to decide that?" Loki glared at the stranger. "Uriel is my brother's sister and in his absence the duty to protect his family falls to me. And maybe you are the actual threat here? I've heard some things about you."

Well, mostly he'd heard that he should walk the other way, if he saw a guy with a red streak in his hair, but that wasn't the sort of warning people usually gave Norse gods, so there had to be a story behind it.