Mr. Krabs hangs Mr. Puff up is SpongeBob SquarePants Season 11 Episode 39. SpongeBob SquarePants Season 11 Episode 39 tells the story of Mr. Krabs got mad and lost his mind, and looked at everyone like a spy of Plankton, Mr. Puff went to the Krabby Patty to buy a burger to take away to eat, and when he almost went to the door of the store, he was hanged by Mr. Krabs, and the Krabby Patty thought that Mr. Puff was a spy of the Plankton boss, and he wasn't allowed to take it away to eat it and had to eat it in the store.