I hadn't listened to this one in over a year...then when I recently revisited it I was surprised to find out how much I enjoyed it. A few thoughts:

1. From a moral standpoint, I don't like witches, or the thought of a "white witch" (they exist in fairy tales but not necessarily in real life) wanting to become a "gray witch". (Reminds me of the supposedly pure Olivia Newton-John character becoming a leather-clad slut at the end of "Grease" to attract her John Travolta...speaking of the RMT era.) But it makes for an interesting story.

2. I LOOOOVE the jazzy outro (used in several RMTs like "Return of the Moresbys" and "Transmutations, Inc.") at the end of the first act, when Gwynne's character finally decides to get a cat.

3. One of my favorite all-time Fred Gwynne performances. May be my favorite in the RMT.

4. Speaking of black and white...the cat Gwynne got in "The therapeutic cat" was a piebald, like "Sadie" pictured below: