I usually carry some sort of "serious" pistol in the woods. My backpacking & fishing gun is a Colt Magnum Carry 357 full of 158 gr sjhp's. Lightweight, unobtrusive, lots of "bang".
One time up here I was pretty sure I was being watched/stalked by something.. and I'm not easily given the creeps, I was carrying a rifle in my hands. I slung the rifle, drew my 44 mag vaquero, and started checking my six every few steps. That feeling didn't leave me until I was inside my jeep.
Never has happened since. But for a while I just had the worst case of the heebie jeebies for lack of a better term, my skin was crawling. Not sure what was 'wrong" but the birds weren't squawking, the squirrels weren't barking, etc etc etc. Maybe it was bigfoot or aliens for all I know.
My thought was this, if I was going to get pounced, it would be up close, and I might not get my rifle into play in time. Keith explained about his mauling by a bear, that it happened so fast I don't think he ever got a shot off. If you watch that lion charge video.. working TWO shots from a Bolt Gun at a running animal that wants to eat you.. well that's a feat.
Killing a lion with a knife.. that's an act of desperation.. considering he's got what.. 5 knives on each foot and a mouth full of more? Still, any guy who killed a lion with a knife.. I'd give him a wide berth in the street.