This is definitely no the smartest man in the world! At Yellowstone National Park a man gets out of his car and starts pounding his chest towards a bison that is on the road. You could guess what happens.
Yellowstone requires that visitors stay at least 25 yards away from bison and elk and 100 yards away from bears and wolves.
"Animals in Yellowstone are wild and unpredictable, no matter how calm they appear to be," the park's guidelines state.