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Mr. Rustworthy

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Mr. Rustworthy is the music teacher at Jerome Horwitz Elementary School. He appears in 2 books so far. In the 5th Captain Underpants book, he witnesses the children having a food fight and the football team destroying the teacher's lounge. He likes children, especially George and Harold, but not food fights. His name is a pun to the word "mistrustworthy."

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