In which I am proud of my cat

I occasionally take Mac outside on a harness to explore the backyard. Since I've started doing this, he's stopped trying to get out the front door nearly as much, though stalks me whenever I near the back door. One thing he's serious about is that the back yard is HIS. The nextdoor cat, Leo, is an outside cat by day who goes inside at night. Leo wanders the neighborhood as if he owns it, and likes to roll around in the dirt in our garden. (I don't understand why cats like this, but it may be to cool off.) Once Leo was in the backyard when Chaz opened the back door, and Mac went racing out after him. He and Leo rolled around in a fight, then Leo broke away and dashed over the tall fence to the nextdoor yard, Mac hot behind him. Mac stopped on the top of the fence, though, whether because it was the border he was defending or because of the large yellow lab who lived in the yard, we don't know.
( This time was different. )