What episode is Spongebob Silly Boy?

Patrick finally found himself clever, but never happy. So in order to save Spongebob, Patrick became stupid again. Extended data:

Synopsis: Spongebob is a square yellow sponge. He lives in a pineapple in bikini beach. His pet is Gary the Snail, a conch that can call a cat. Spongebob likes catching jellyfish and is the number one chef in krusty krab. Patrick and Sandy are friends of Spongebob. Spongebob always makes trouble for a peaceful world. Although he made some jokes, he always got out of trouble and made new troubles.