Is the .45 ACP Enough to Stop a Bear?

Pine needles are something I harvest from time to time to make a tea from. As scientific research suggests, pine needles are rich in health promoting medicinal compounds. One of particular interest, especially

Bears don't want to attack people. We kill them far more often than they kill us, and many bears seem to be aware of that ratio. When they do attack, it's usually because they were either starved or startled.