More dog drama. The little chihuahua has NOT been claimed. I have had no contact despite advertising everywhere. I drove the neighborhood where I found him, looking for "lost dog" signs. I spoke to a neighbor across the street from where he had been hanging out for an hour. The neighbor knew no one with a black chihuahua, and as a retired elderly man is probably home a lot to know.
Dog it also not as housebroken as I thought at first. :P