I'm so glad you were able to find a specialist to talk to! Who would have thought to take them to the vet!?thanks everyone. I'm still miserable. watched the videos. have them separated out which is pretty difficult in my small open floor plan house with only two interior doors. heading to hardware store to get eyehooks to lock doors with as the doors are really pocket doors and slide, and lucy can open them no matter what I wedge underneath. spoke to a cat behavorist (who knew there was such a thing). am taking both in for vet exam (oh the unplanned expenses) wed to see if underlying medical issues - apparently an ill cat can provoke the same kind of survival behavior you see in chickens when they beat up ill hens!