No, I am not near the breaking point yet. I do so want to keep Lydia. She's such a sweet cat except with Briggs. I, too have wondered if Lydia might just be wanting to play. Even though she is pretty big, the vet said she is only like 10 months old, therefore still a kitten. She's very playful with us and with her toys. What makes me think the charging of Briggs by Lydia is aggressive is the noises Lydia makes. She has never just tried to get close to Briggs and sniff which I would interpret as a peaceful approach. She always does that caterwauling which to my ears sounds like a prelude to an attack. I definitely could be wrong about that because I am not experienced with cats at all. These are my first kitties, ever.

I have tried clapping my hands and telling Lydia "NO" when her vocalizing gets to the "bad" part. She now knows she is not supposed to do that with Briggs. Now, if I walk into the room when she is howling and tell her "no", she will stop and run off. However, as soon as I turn my back, she returns to the scene of the crime and picks up where she left off. Toddlers!

All of your suggestions are so appreciated. I will keep trying and praying and trying and praying and trying.....Thank you so much.

Bobbi