... and on bikes, you're moving quickly and fairly quietly - bear doesn't have time to hear you and move off - bear attacks biker, bear bad. Bears are damn quick and corner very low.
Ken Block? Puh-leeez. He ain't got nuthin' on this guy. http://www.liveleak.com/view?i=209_1435094924
haha look at his entire youtube channel collection. https://www.youtube.com/channel/UCsepj1TWn708uIKgq78mK-g