The Wash duplicate (or whatever he was) might have missed the intended insult but Jo certainly caught it. She just chose to ignore it for now. Later, she was going to have to address it with both of them and she was probably going to have to see if they could find somewhere else for the Wash that wasn't to stay. For now, she led Maxine to the table and grabbed a bowl for her.
She looked over at Maxine.
"Did you talk to the frog? Maybe learn where it came from?"
She was still learning the extent of Maxine's abilities, but communicating with animals seemed to be something she could do. And if it was, then maybe the frog had told her something about what was going on. If it was an omen for something worse, then Jo wanted to be prepared.