One minute, you're a big bad apex predator with nary a fear in the world, like the caiman in the video above.
The next... well... watch to find out what happens. As the woman filming the encounter says at the end, "Oh my god! I got a movie."
Yes, you sure do.
The video, which went viral this week, appears to be a slightly different angle of footage seen by millions last year. After watching the raw video, read this to learn more and see the encounter unfold from another point of view with a National Geographic narrator.
If you still can't get enough, check out some photos here.