Hey, thanks, CycleFrance!
I just left a message on "B''s machine for "A," and told her that it is simply too much for me to mediate between the two cats and the arrival of "Shine" (the Corgi pup's litter name) will make everything worse. It would be one thing if I had decided to add an adult clawless cat AND a puppy to my household at the same time. But I did NOT make such a decision. I refuse to be the one who has to drop the cat off at the Humane Society to be euthanized. It is A's cat and it is B who refuses to allow it into her pet-free home even long enough to allow "A" to find a new home for it. Let A or B do the dirty deed. I won't.
I told them that I will be dropping off the cat at their house tomorrow. If no one is home, I will leave the cat in its crate with plenty of warm blankets on their front porch. The cat is NOT my responsibility.
I understand A is going through a lot right now, but so am I. Enough is enough. The cat has been here 5 days now and every single one of them, I've been treated to continual sounds of cats fighting and screaming or the awkwardness of locking the animals in seperate rooms.
If B had a shred of kindness within her, she'd allow A's cat to stay in the unused back room of her house which is twice the size of my house until A can find a new home for the kitty. Both A and B were over to my tiny cottage last night which now has plenty of cat fur and dander in the air. I did not notice B sneezing once and her fair complexion did not turned red from an allergic reaction, nor did she break out into hives or have her air passageway close up. I told them then that the cat needed to go and they promised to come get it today. So far they haven't, and its almost 5:00pm.
Its up to A to resolve, not me.