My cat attacked every other cat that I tried to bring home, didn't matter if they were old, middle aged, kittens, friendly or not, he'd go for them, claws and teeth showing. As far as he's concerned wherever I live is his home and his only, definitely no other cats allowed.

Chuck is the SAME WAY! I have never been able to have another cat in the house, ever. Or the fur will fly!

He loves the dog though and will snuggle with her.