Aggressive Squirrel

There's a really aggressive squirrel in my backyard. She muscles the cats out of the way to get their kibble, and when I bring the kibble in the house, she comes right in through an open door to get it. This morning she came in and ate an avocado on the kitchen counter.



Then she was wearing down her teeth on the screen door, which I captured on this video. (Oops! It's sideways. I forgot that you can't rotate a video, or at least I can't. Sorry about that. Turn your head sideways to watch it!)



She's fearless, and seems to be desperately hungry. What do you do with a wild animal like this?