jokes on the website

Two guys are walking along the seashore when they suddenly see a shark. They dive underwater and take a look – it’s an inflatable rubber shark, and a person is just hanging onto it. They walk on, and suddenly a huge shark swims by. They think it’s rubber again and keep walking. A minute later, there are no sharks at all. Another minute later, they see a huge shark, they go to take a closer look, and it’s another rubber shark, but this time with two people, one of whom is holding a deflated shark in one hand.

Added after 45 seconds
So, whose joke is this?

Added after 11 hours 31 minutes
So, I thought about it and decided: I will divide jokes into three parts: based on reality, dialogue-based, and narrative. Sometimes they may be mixed. A real-life incident. I was walking down the street to the store. I went in, bought something, and as I approached the entrance to my building, I saw that repair work was being done there. One of the workers said: - I could really use some bread and salt right now. And I just happened to be carrying that. He must have seen what I had, and he pounced on me: - Hey, can you spare some? - This isn't for me or you; it's for my mom to make cutlets. - How about I be your mom's cutlet? - Haha. Funny, but no. Then three other guys come up. - If one of us can't get it, we'll take it together, all four of us! And I just ran home. That's basically what happened. Then I see my classmate walking by with tomatoes, cucumbers, bread, and water!!!! You can imagine what happened next...