There is this little brown tabby that comes around a lot. I know she used to belong to someone because she had a flea collar. She doesn't have it anymore and she's been around a lot more, I'm hoping she still has a home. Anyway, she is very mean. She hisses and growls at me, she hisses and growls at the other cats. But she doesn't run away. She just sits there and hisses and growls. I don't know. I'm guessing there probably isn't a solution to this problem, and as far as I know, she's never attacked any of the cats.