Penny Foolish: When Mr. Krabs sees SpongeBob pick a penny up off the street, he becomes obsessed with the coin and vows to have it in his possession no matter what it takes. Nautical Novice: SpongeBob's boating school class is going on a field trip to the Nautical Museum-a perfect opportunity for SpongeBob to show off his boating know-how to Mrs. Puff! SpongeBob is convinced that once she sees just how knowledgeable he is about boating history, Mrs. Puff is sure to give him his license! Now all he needs to do is memorize the entire history of boating in one night.