It doesn't and mine wouldn't. How did you come to that conclusion? He sure could alert me to the bear's presence long before I knew he was in the area and I've also found that having a dog in a backcountry camp is a great deterant to bears coming in. They seem to avoid camps with dogs...likely because scent is similar to wolves I suspect. I've never had a bear come in on a kill with a dog present either. I have without a dog though. Again, likely due to the scent. The same scent that would likely spook the sheep...