8 Squidward's School for Grown Ups

When Patrick suddenly grows a beard, he decides it is time for him to act like a grown-up. He tags along with Squidward, who offers to teach him everything he knows about how to be mature, much to SpongeBob's dismay. When at an opera house, the two watch SpongeBob, who disguises himself as a female viking and performs an aria titled "Dear Friend" to win Patrick back. Patrick begins to cry and his tears drench the beard revealing that it is actually a sea urchin. SpongeBob reveals this to Patrick, which leads to them reconciling as best friends and being heavily applauded by the audience, only to be interrupted an angered (and extremely jealous) Squidward who indirectly claims that the show was terrible, but the audience disagrees by throwing fruit at him.