I was hiking a pole line by myself through the woods when I came across a cow with it's throat ripped out. I hiked down the mountain to inform the rancher and he told me it was the 6th one killed, but not eaten, that month.
I hiked back up the mountain and went back to work. About 30 minutes later, I heard a large caliber gun shot and it's target was very close to me. I stayed near a tree until I saw the rancher hike up the mountain. He was watching me hiking and noticed something stalking me. Sure enough, it was the mountain lion that was killing his cattle. He dropped it about 25 yards behind me. I still had six miles of work to do and spent the rest of the day a nervous wreck wondering what else was behind me.
Another time, I was working along side the road when a black bear came flying down the hill straight at me. I had nothing but a wrench and a damn barbed wire fence right behind me. No where to run and nothing to defend myself with. Luckily, it was running away from something and not attacking me. It got about 10 feet from me, suddenly realized I was there and took a sharp right and ran up the mountain. I took a sharp left, climbed the fence and drove back to the office and spent the rest of the day behind a locked door.
Then, around 8 years ago, I went hiking and grabbed the wrong backpack. It had everything I needed except my bear spray and pistol. I cussed myself at the trailhead, but went anyway. I had the wind at my back and yelled every 5 minutes or so to scare any predators off.
After I reached the top of the mountain, it was time to back track on the same trail. I felt pretty confident I scared everything in the valley away so I didn't bother yelling anymore.
About half way down, I came to a big rock and tree that had a narrow gap to hike through. Just as I stepped through it, I found myself 3 feet from a bear that was just as startled as I was. It started huffing and grunting at me and the only words I could get out of my mouth were "shit...shit...shit...shit". Luckily, I stayed cool and said my cuss words in a soft tone and it didn't attack. I stepped back through the passage and hiked back about 100 yards. I hiked down the valley bottom and got on the other ridge and had to blaze a trail. I could see the bear sitting where I last saw it and hiked down hill from it. I eventually got back on the trail knowing that it was now behind, but I was real nervous because I didn't know if it was coming behind me or going the other way.
Fast forward, about a mile down the trail. I see something out of the corner of my eye fly up a tree. I'd spooked a mountain lion up a tree and it was giving me the stink eye, but didn't growl. I wanted to run, but knew that was the worst thing I could do. I ended up walking the last two miles alternating between walking normal and walking backwards to watch if anything was coming up behind me. I felt like I had a "lunch" sign on my back.
Okay...one more. I had to hike another pole line and was warned that there was a mean bull in the area. I saw the bull during the hike and kept an eye on him. About a half hour later, I could here something coming up behind me. When I'd stop, it would stop. When I would walk, I could here it stepping on leaves/twigs/rocks. This went on for about 20 minutes and I was getting pretty worried. I had just started walking again and it finally decided to attack! Three pygmy goats came up behind me and started head-butting my ankles and calves. I ended up scratching and petting them and made some new friends. They had collars so I let them follow me to the truck and I took them back to their owner.
In the last month, in my work truck, I've had a moose run by me at around 10 feet away and a grizzly trot right next to my truck door. It was cool to see, but I was damn glad I was inside the rig.
As far as Bwana...that guy does take a LOT of stuff on ATV trips. I think his gear weighs more than his ATV. Of course, half that weight is beer. He should post the video of him hitting a boulder at 30 mph and all his gear flying into the creek. I've never seen so many sandwich bags filled with electronics in my life!
Sorry...TL/DR