I was zoned out on the couch yesterday afternoon when I startled all
the way awake by screams and hisses coming from the living room.
Spotsie was seeing the neighbor's ginger and white tomcat through the
window and wasn't pleased at all by the view.  The other cat was
giving her the old "you're in there and I'm out here and what are you
going to do about it?" through the window.  In the interest of peace
inside my house I went outside and shooed the other cat away.  Seeing
that cat presses all the right buttons on Spotsie and she just flies
into a rage every time he comes into sight.