Hello all. I've had a recent problem with my cat Iggy fighting with the neighbor cat. He's a four year old male (neutered), and we've lived in the same house since he was a wee one of five weeks old. He's been an outdoor cat since birth (I bring him in at night). Recently, my neighbor, who has lived in the area for a while, has started letting her male cat outside for periods of time. This cat is older/bigger than mine, but my cat, I think, feels as if the neighbor's yard is his turf, since he's had access to it unfettered for years now. Anyhow, these cats hate each other, and my poor Iggy is getting roughed up pretty badly. Is there anything that can be done to get these cats to tolerate each other? I know the obvious answer is to keep my cat in all the time, but he's miserable when I do that. Thanks in advance for any input!