I gave in to my whim today and went to the Sarasota Humane Society. There I adopted "Penny" a 7 year old Terrier mix.
She is the most social and friendly dog, and has already had friendly encounters with four of the neighbourhood dogs.
Within the house she loves to be near to me, and would be tres affectionate with Ada and Adelaide my cats, if only they would consent.
That will happen within a day or two.
I used to be quite indifferent about pet animals - now I have three.
Maybe there is a friendly goldfish on my horizon!