In most cases, black bears are relatively shy, only acting aggressively as a last resort. Nevertheless, the most effective way to avoid a bear attack is by preventing encounters in the first place. Just because black bears can be less dangerous than other large carnivores doesn't mean fatal attacks don't happen.
What should you do if you encounter a black bear?
Stand and face the bear directly. Never run away from or approach him. Make yourself look as big as possible by spreading your arms or, better yet, a coat. Make as much noise as possible by yelling, banging pots and pans or using other noisemaking devices.
How likely are black bears attacking?
The 750,000 black bears of North America kill less than one person per year on the average, while men ages 18-24 are 167 times more likely to kill someone than a black bear. Most attacks by black bears are defensive reactions to a person who is too close, which is an easy situation to avoid.