A scary supper
If you find yourself caught in the middle of a school of large barracuda, what would you do? We would most likely die from fright on the spot, but the OP has more sense than us. He motioned to the leader that a school of barracuda was in the way, but they proceeded to swim forward as if it was the most normal thing in the world.
And the most astonishing thing was that the barracuda just let them pass. But toward the end of their tour, the OP went fishing and caught a few barracuda that he turned into tacos for lunch, which taught those pesky barracudas who’s boss.