That first video is very Indiana Jones but that 2nd one is unfortunate. People shouldn't harass animals not even for youtube.
I've only had two encounters that I know of with poisonous snakes, though I spent a lot of time in mountain lakes so probably there were some moccasins there. As a little kid I was thrown off a horse spooked by a rattler. And then wound up sitting next to a pigmy rattler one time when I was in my late teens or early 20s. I just moved aside and gave him some room. You don't argue with a rattler.
So the poisonous ones aren't my favorites but I'm cool with them if they don't bother me. I've had lots of close encounters with the nonpoisonous variety including being "in charge" of the snake hut at summer camp. So far this year I've had a few encounters in the garden with a wonderful indigo who I let crawl on me. I wanted to pick him up but the are rare and so you're not supposed to bother them.
And just last week I think it was there was a racer in the garden. He posed for a picture. The indigo, who eats poisonous snakes, is friendly enough to be domesticated. The racer, not so much, but if you're calm about them they don't just strike. He stuck his tongue out at me. Rude but not threatening.
Here's baby indigo who I let crawl on me
Here's the racer posing for his portrait
And here's red shouldered hawk, who eats racers for brunch