When I mentioned recently that our neighbor cat, Bert, considers the marina his domain- I wasn't kidding. We had a hysterical event recently that illustrates it perfectly.
Witness Bert, hanging out in one of his favorite places: the middle of the dock.
See that little orange fluff waaayyyyy down towards the other end of the dock? That's Whistler, the Nova Scotia Duck Tolling Retriever (yep that's a breed) that belongs to marina neighbors.
Note that Bert is not even bothering to look at him. Such a cat.
He's scared of Bert. He will NOT pass him on the dock. He did get closer, but they remained in a standoff here for about five minutes.
Eventually, Whistler turned around and went back to his boat... Bert's dominance unquestioned.