Here's one difference--it violates to common-sense principles of human behavior in bear country, regardless of the activity in which your engaging: (1) You don't move through areas in which there is poor visibility--you need to be able to see a bear's approach from a distance, and the bear needs to be aware of your presence before you both come nose-to-navel.  (2) It's unwise to move rapidly in a bear's field of vision.  If the bear interprets your movement as flight, in most instances it's going to chase you.

If common sense intrudes on your thrill-seeking activities, I see that as your problem.  If you insist on eschewing common sense, we may read about you in the paper.  Were it not for the fact that the bear you may aggravate into attacking you will most likely be hunted down and killed, I'd be willing to shrug it off as natural selection at work.