Starring: Clancy Brown, Tom Kenny, Bill Fagerbakke, Rodger Bumpass
Grandma's Kisses / Squidville - S2-E9
Audio problem: After SpongeBob causes a flood in his grandma's house, he cries because he is fed up of being an adult and his grandma tells him he doesn't have to be a baby to get her love. When SpongeBob replies, "I'm not?" note that in his reflection, his mouth does not move.
Best Day Ever/The Gift of Gum - S4-E20
Revealing mistake: When Squidward says "I suppose if you haven't fixed my clarinet, the concert would have been a bust", Sandy's tail is the same color as her suit.
Dying For Pie / Imitation Krabs - S2-E6
Mr. Krabs: What's the most important rule here?
Spongebob: No free napkins?
Mr. Krabs: No, the other most important rule!
Spongebob: Only discuss the secret formula with Mr Krabs.
Mr. Krabs: As long as you do that, the formula is safe.
Squidward: I thought the most important rule was why do today what you can put off for tomorrow?
Mr. Krabs: But what's today, but yesterday's tomorrow?
Squidward: What?
Driven to Tears/Rule of Dumb - S4-E17
Question: Exactly how did Patrick get his licence when he can't even remember his own parents half the time?
Answer: I think that this was supposed to be an intended joke. Patrick is too stupid to remember or achieve most things and SpongeBob is able to remember and achieve most things, but the one thing that SpongeBob cannot achieve, is the one thing Patrick can achieve on the first go.
Casual Person