My Abby torments her sister Becky, too, even though Becky weighs 5 more pounds and once tried to kill her.

I think things would go better if Abby would not aggitate Misty.
Abby does not even trust Pouncer to come near her anymore, and SHE starts a fight if he even walks past her.
LOL..perhaps the problem is that she's named Abby! Maybe we should all try renaming them.