Man are you sure that guy's human? I know people are stupid, but that's a new level for Darwin Awards.
I had an unintentional experience like this guy but with a momma black bear first summer I met my Wife Karyn. I was at Karyn's house up the road from my place when the dogs went nuts barking down the drive. This went on for a while so I realized it needed to stop, figured I'd just step out and handle it. Wanted to just go back to warm bed with Karyn. So I left the house only in my boxers and walked down the drive. About 100' down at the corner of the drive there's a spring house and small pond. Drive takes a 90* right at the pond heading out to the road. As the drive bends right the drive embankment falls off about 8' to the natural slope. So it's about 5 in the morning and I'm groggy rubbing my eyes (don't have my glasses on as well) shuffling down to the bend. So just slightly around the bend at the end of the pond, there's a birch tree about 10' from the driveway edge. At this point the embankment is about 8' high and this birch tree is just at the bottom of the embankment. I get there and the dogs suddenly stop barking and start back to the house. It was like "well now the the human is here we're done".
It's semi light out just about dawn. So I wonder down the last 10' to the edge to see what the dogs were excited about. Well I was looking at a dark spot in that birch tree which finally came into focus as a smallish cub. At that very moment I came fully awake. Looking down at the base was momma looking right at me with that beady eye stare, just as still and quite as you please. I slowly turned around and just walked back up to the house. Didn't look back, didn't hurry, just calmly walked back.
So I've never felt more vulnerable then that moment when I realized I didn't have my pants on. The idea of facing a even a small momma bear, only in my boxers, was a very uncomfortable moment..