Weirdos! They see each other every morning. One inside, the other on the deck and they still fight through the glass. He is a HUGE tabby cat with white socks and nose, and she is are most cranky of feline companions, Mac. The are trying to be so ferocious, it's so cute. So much growling and hissing and spitting over nothing. Big Tabby usually starts it all up by "innocently walking past the window. This sets Mac off, she is hissing, spitting, hair raised, and oh so very angry! Then, Big Tabby casually glances inside to see what all the fuss is about, he sees Mac and her sidekick Yui and he flops onto his back, exposing his belly and stares at Mac with a "you know you want me" look in his eyes. By this time she is so angry she is trying to claw through the glass to get at Tabby and hurt him badly. Then, Big Tabby pops up and body slams the glass sending all three cats into a frenzy of hissing, growling, claws and teeth!
They just stare at each other from opposite sides of the glass. When Tabby gets bored he stalks off, leaving Mac to curse at him through the glass.