Rusty Is Lazy
Or else he's completely spread out by the front window. Or on the couch.
He's such a funny dog (not to mention that he can totally be an asshole), but he has this funny habit where he'll lay on the couch, hear something outside but instead of going to the window to look and see what it is - he just barks from the couch. And no, he doesn't even lift his head up to look.
Lazy, lazy dog. Lazy.