I never had a problems with bears. They will usually run the other way. I was turkey hunting one spring morning after work, I worked 11 to 7 at the time. Well anywho I was calling and saw a black patch coming through some small pines, I thought it was a gobbler. It wasn't it was a bear. I stood up and slapped the side of a tree next to me while telling it, not yelling, it was ruining my hunt. It took off like it was scalded.
I figured it was in the next county by then so I walked down towards the bottom and there it stood, up on its hind legs sniffing the air. I then started waving my arms and saying, here I am over here. It took off again kicking up dirt as it was going. I had to laugh at that. [:D]
Don't hunt harder hunt smarter