SpongeBob SquarePants - Season 4 Episode 15 Krusty Towers Be there and be square!
Overview: After Mr. Krab's gets a huge hotel bill he decides that he can make a profit from opening his own. When Patrick decides to visit the hotel Mr. Krabs demands Squidward to never deny a guest even the most ridiculous request, but after Patrick frustrates Squidward so badly he quits his job. Then he decides to check into the Krusty Towers.