Every year people get hurt in Yellowstone because they don't leave WILD animals alone. When we were there, we came back from a hike and there was a Bison in the parking lot. We were a couple hundred feet away and there were people trying to go up to him. One idiot was carrying his daughter and was wanting her to pet him. All of a sudden the Bison had had enough and went charging at people, fortunately the Bison went away from the man with his daughter. I moved my crew back up the trail. Soon as the Bison moved to the far end of the parking lot, I got everyone in the car and drove off. The Elk injure more people than any animal at the park.