My cat will stand in the windowsill and watch the neighborhood. He growls at people he doesn't like. He thinks he's an old lady who watches the neighborhood and gossips all day long combined with a dog.

Also, I think he's in love with my mom's dog. She'll instigate a play fight and he'll fight back by grabbing onto her with his paws and holding her down while he cleans her. And she just sits/lays there and lets him do his thing.

He's also tried to force himself upon her even though he's fixed and so is she. AND the fact that she's a dog and he's a cat :o