I'm a little bit of a scrapper as you can see from the hair that is just beginning to grow back over my brow.  Right now it looks like I have a dent, but it's not.  I also have a sizable nick in my ear, where one of the other chipmunks took a bite, but it doesn't really show up in these pictures.

You may think the other chippys in the yard are pushing me around, but I'm the one doing the chasing.  I like to think I'm pretty tough.  Unfortunately, sometimes they turn around and I become the chased instead of the chaser.  It's a tough life out there in the yard.