For Shaxx, the casual insult is happily familiar. It's not so different from how he and Saint insult each other at times, just one more thread in the social bond.

He just gives Daigo a wave as he rides off. If he didn't think the man would get the sparrow and himself back in one piece, he never would have handed it over.

He passes his time waiting for Daigo to get back chatting with the mechanics for a bit, before settling to lean comfortably against a wall and scroll through a book on the internal display of his helmet, not wanting to distract them from their work too much. The background noise (mostly filtered out) and movement is comforting in a way; it reminds him of being in the Tower, during times of construction. He'd be tempted to hang around here more often, but he also doesn't want to be overbearing or interfere with the way Daigo conducts his life.