Anacondas are huge, but seeing one stretched out like this gives a new appreciation for just how big they are. As far as reactions go, the person screaming endlessly is as close to my reaction as I could imagine.
It’s not really clear why the guy keeps grabbing the snake and following it, unless he just really wanted to get crushed and eaten that day. Fortunately for him, it looks like the snake had recently eaten, so boater wasn’t on the menu.
https://www.youtube.com/watch?v=HHuzLacm6EU