Being that this seems to becoming a bit of a 'bear' of a thread I'll say this - agreeing with Rotte here, bears smell like crap (think: wet dog, dead stuff, really bad BO, and skunk rolled into one) - I know this because A: I've been around dead bears, and B: that was a smell I smelled a few days ago, just about the same time the dog went haywire and rocks started rolling down around us as Mr. Bear headed uphill on the scree slope as we rounded a bend in the fog...
Secondly; you can carry bear spray, a shotgun, a Glock 20 10mm, a .44 Mag SAA like I do, a Ruger 'Alaskan' in .454 Casull, or a battery-powered six-barrel mini-gun...it doesn't really much matter in bear country. An angry 300 to 800 lb bear coming out of the brush at 40 MPH is pretty much gonna stomp yer ass into the ground and chew on ya for a bit before leaving (if you're lucky)...
I'm under no illusion that I'll be able to get to my spray/gun/knife before my ass is aced, and I've already told the dog he's on his own. I only carry that stuff so my friends won't laugh too much when I'm written about in the paper saying I 'wasn't prepared'. And yes, the strap was off and my hand at the ready, but I honestly don't think that matters much at all.
If you look at those fog and tight trail pics I posted above, you have to remember that after a six mile drive up a narrow dirt (mud) road, a 1.5 mile hike uphill, and a 1.5 mile hike down hill, all in the rain and fog, I saw NO other people. I did however see bear poop, see a few bear scratch trees with fresh scratches, a DNA collection tree w/barbed wire and bear hair, smelled a bear, and heard a bear blazing up a hill in the fog...that's just one hike of many.
Simple fact is, stumbling up on a bear with carcass, in a berry patch, or with cubs and I'll be forked - and no amount of firepower or preparedness is gonna do me much good. Other'n that, the bear(s) will usually try and get out of the way. That said, each one is different and ya never know - especially on a narrow trail in the fog. Charging bears are insanely fast.
Just saying, you can be quick, alert, well-heeled, and a crack shot - but in (real) bear country, that means just about spit...so don't go thinking otherwise, lest you find yourself unprepared to be lunch...