Funny thing about bears..... In a close encounter, a Grizz is more likely to attack out of aggression, kill you, and leave you lay. But when a male black bear attacks, it is more likely to actually eat you.
I spend a lot of time in black bear country (Maine and PA), photographing wildlife, kayaking, camping; and have encountered a lot of bears. Most run away, some are a little curious. I have been bluff charged a couple times. Had bears pressing against the fabric of a small tent while I sat inside sweating. Even been chased by a female when I got between her and her cubs with a camera. She could have had me if she wanted, but was content to just "push" me away from her cubs. Had a small bear in the water follow me around a pond in my kayak - Don't know what he was thinking.
Only time I ever really felt in danger was years ago, up in Maine. Was walking from a lake I had been kayaking on back to camp for lunch with the wife and step kids. Bear started following me, circling. He would disappear into the woods, then reappear, getting closer each time. he was small, and didn't look right. Seemed he was trying to work up his courage. After about ten minutes of cat and mouse, he ignored my shouts, trying to drive him off, and started making a bee line for me. At about 15 yards, I shot him in the head with a .45 Glock I was carrying.
He was an old bear, with broken teeth, and in a starved condition. The game warden agreed that he was starving, and a threat. I do believe he was about to attempt to eat me, and that was a weird feeling, let me tell you. It made me a firm believer in always carrying a firearm in the woods - always.
Larry