I have to be honest, I wouldn't mess with a full grown animal that could mess me up if aggravated enough. I'd cut my loses and take off, because to me it's not worth the potential harm it could cause me. this photographer clearly had a job to do and he wasn't going to back down. So when a Polar bear begins to address him, this guy stands up for himself. He literally chases the bears off in this video a MULTIPLE times. Each time, I found myself worried the bear would have enough of this guy. Props to the Photographer. That's one brave dude.