Years ago while elk hunting in New Mexico, I was charged by a large sow black bear. I was watching her from a distance, and saw no threat. All of a sudden I must have gotten winded and did not see that she had a set of cubs with her, if I would have seen the cubs, i would have used a lot more caution. From about 100 yards away she covered that distance in an amazing short period of time. I did have a holstered 44 super blackhawk, but getting in the tree i was under seemed a lot easier than trying to get a shot on the charging bear, very seldom will a full grown bear go up a tree and leave the cubs. She kept me in the tree for a few hours and once determined I was no threat, left. In New Mexico we were not allowed to kill bears with cubs, and unless my life was in danger in that tree I wouldn't have killed her. BUT, the tree was the best option versus a charging bear with it's head down and running at you with a speed that seemed ridiculously too fast for that size of a creature. The time it would take to drop the rifle (scoped) and pull the pistol to maybe get a killing shot on the charging bear, to me it seemed as if my odds were a lot better in the tree. And I just barely got out of her way than....sometimes thinking of the options makes a lot better sense than fool hearty attempts at macho actions. There are too many stories out there with BEAR 1 and HUNTER 0. I was alone and didn't have anyone with me to outrun!!!