SpongeBob SquarePants Season 1 Episode 18 Texas - Walking Small >At Goo Lagoon, Plankton arrives to turn the beach into the future site of a Chum Bucket branch, demanding that everyone leave the beach. However, no one listens to him, due to how small he is. He concludes that he needs someone big to help clear the beach for him, and encounters SpongeBob. Plankton decides to trick SpongeBob into being "assertive" in order to get the things that he wants. After a series of cruel and nasty actions by SpongeBob, everyone leaves the beach. Plankton then reveals his true intentions to SpongeBob, making him very upset. SpongeBob defeats Plankton by becoming "aggressively nice", performing kind actions that attract the people back to the beach. Plankton leaves the beach, disgusted by the overwhelming amount of kindness.