Called H, said I had a question about the dog. H: "What the f*** am I thinking?" I said no, asked what he was planning to do with the dog. Turns out he's not intending to bring it home, but rather to park it with OM (or whatever she is)---who's a dog person, by the way ---"for a few days" (???) until he gets his own place.
So no worries after all. And now I really am going to do something outside the house!