So maybe it is an excuse! But the way he was all wrapped up and huddled by the furnace is a sign.

He watches Balthazar petting his teapot. It likes petting. "I traveled for a very long time. It... has been nice to settle in somewhere, but perhaps... I should go out before I simply rust in place like some abandoned automaton..." He blinks and looks thoughtful because he's not usually that poetic.