Two mountain bikers disturb a grizzly bear and her cub, charging the the two men three times before retreating.
From YouTube:
We were riding single track just outside of Jasper town-site when the encounter occurred. I rode to the top of a hill and applied the brakes to wait for Dan and plan my descent. My brakes squealed a bit, then I heard a growl and looked to my right to see a grizzly bear charging at me.
...
When Dan arrived on the scene, he created a distraction, which drew the bear to him. He managed to grab the bear spray from his bag in time to brace himself, but the bear stopped approximately 10 meters from him — just outside the spray's effective range. Frankly, I'm glad we didn't have to injure the mother in any way.
Meanwhile, I worked my way along the bottom of the gully toward Dan so that I wasn't alone in the rough bush. As I reached him, the sow and her cub charged toward us slightly once more before heading away in the direction that we had come from.