Quote Originally Posted by Biciclista View Post
that's what I'd do. Separate and reintroduce.
Or every time he starts this behavior quietly pick him up and put him in a kennel or a bathroom or something.

Any ideas on the best way to re-introduce? My sister currently has my "Cat vs. Cat" book, and I don't want to separate if I have no idea how to meaningfully re-introduce them.

I'd put him in timeout, except he's most likely to do this before we get up in the morning, when he's hungry and lonely. I am going to try the timeout thing around dinnertime, just to see what happens. Think I could use the basement for timeout?

They're getting regular vet checks and, aside from the female's weight issues, everyone is healthy.

Thanks for the advice. Keep it coming- I need all the help that I can get!