The Enforcer

It's very hard to see but Lizzie is fixated on the dark spot in the shadow at the edge of the grass which is the neighbor's fluffy black cat, the one who keeps coming over and trying to make friends. Lizzie won't have any of it and chases him off every time, but she never leaves her yard -- she just makes sure he does. About 2 seconds after the shutter clicked, Lizzie jumped up and chased him off, then she came in for her dinner and all was right with the world.