RE: Never been so scared in my life!
I have been charged twice by black bears. The first was in Alaska-he took two seven mag rounds and another from a 338. He didn't make it-I was prepared to put a third round down his throat. The second was less than five feet when a broadhead ripped through his chest. I was scream "hey bear, hey bear" at the top of my lungs! He broke off his charge when the arrow hit. I never recovered him...
I have had many climb the tree...even had one try to shake me from it (he's a nice rug now). They're efinitely formidable opponents. Avoid carrying marshmellows to your stand-it helps.