I watched a squirrel fight himself for at least 3 minutes

I saw a squirrel running around in circles in our front yard yesterday, hissing at something. I thought he was being cornered by a raccoon or something (we have lots of raccoons in our neighborhood). I get closer and realize he’s in a bush, I toss a pinecone to scare whatever he is fighting away. Nothing. I got closer to the bush and I realize he’s literally fighting the bush. I had never seen anything like it. Scared the hell out of me. <br><br><br>This was the first thing I thought of when I saw this sub.<br><br>Edit: I’m loving all the feedback, thanks!