Hailey does not like anyone in her yard or walking down the sidewalk in front of the house. She is very territorial. Even chases the geese off the grass. There is a cat who lives across the street that comes over to "visit" sometimes and this really gets her mad. She was making this horrible gutteral growling sound and I came to see what got into her. You can see the glowing eyes and silhouette of the other cat on the deck.