My Freddie used to think the entire neighborhood was his "territory". A nasty fight with a local Tom convinced him otherwise. Now he stays on our property or at least within sight of the house. I find cat droppings around. Not sure whose because my litter box is always full. I get a bit annoyed at the dog droppings I find. It's either a dog or a mountain lion sized cat.
When Seamus visits I keep plastic bags in my pockets to pick up after him. Not sure why any dog is allowed to run free. It isn't safe given the amount of traffic on Evans and the speed of cars on my street.
Don't know how to keep cats away. I am a magnet for them.
SINS