Even the best teachers can have an oopsy day. Sometimes things just don't go their way.

Uh-oh! Mr. Bungles drips jam on his tie at breakfast. His students play a trick on him at school. And the class hamster, Nibbles, escapes from his cage! Mr. Bungles and the class chase Nibbles through the halls and into town. But can they catch the hamster?

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