. >> this fish starts vanishing down to davey jones' locker with this line wrapped around his leg. >> that has to be the scariest feeling in the world when you have no control. >> right, and no breath. he had a snorkel. he's not scuba diving. you you can see as he comes back, he had a dive knife with him, frees himself. back up to the top of the water just in time. >> talk about a breath of relief. >> that almost cost him his life. >> incredible fish tale, and he's got the video. >> when the big one got away -- no, it really got away and nearly killed me. >> honestly he's telling the story in the description, and he says exactly the same thing. the thing that saved his life was his dive knife. >> oh, my god. >>> in argentina, it's not the way we normally refer to it. here you see the student closing the door. he shoves on it a little bit. >> what the heck happened? working behind the desk knew it was going to happen. >> they say it was really windy outside so they were thinking he was having a hard time shutting the door. as a result, when he closed the door, it came crashing down, an