A tourist at Yellowstone National Park thought it would be a good idea to taunt a bison. The man escaped serious injury only because it was the bison who made the decision to walk away. Lindsey Jones shot video of the encounter and spoke to Inside Edition. “I was definitely worried for him!” she said. "I was truly nervous that he was going to throw him in the air several feet. I was really scared for the guy, I thought it could've ended really bad." Bison can be aggressive when defending their turf.