Well I was kinda stupid...we were caught in a traffic jam coming out the North Gate of Yellowstone. We just happened to be by 2 big Buffalos fighting. When it was over....I grunted. And the winner turned and came toward us. We couldn't move because of the stopped traffic to view the buffalo. I was thinking...damn I am going to have to fix the door and hope he doesn't break the glass. But he stopped