Yes. Not pretty.
As a kid I lived in a neighborhood where, on one side of me there was a man with a pet coon and on the other side was a family with a coon-dog.
The dog owners were always taunting the "coon" neighbor - telling him to make sure that his coon didn't wander out into the yard cause ol' Duke would "have him for breakfast."
One day, sure enough, I was playing out in my yard when I noticed the coon come out from under their bushes.
The coon-dog was across the street and when he saw the coon he immediately started running directly towards him.
I screamed and yelled and went runnng towards the coon - who was now stopped in his tracks watching the dog bear down on him.
I stopped running when the dog reached the coon.
In the blink of an eye, that coon was on the dog's back and his front claws reached around the neck of the dog.
He just peeled the dog wide open - the dog dropped like a rock. The coon continued on his way.
They showed a racoon being attacked by a mountian lion.
That racoon instantly turned into a threshing machine, and in the blink of an eye, the mountiain lion was trying to get the hell away from the racoon, doing several 4-5 foot vertical leaps, and finally running a full speed to get away.
Pound for pound, there can't be many tougher animals.