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Beaver insists that he's too old for birthday parties and presents and all that kind of junk. Accordingly, his parents present him with money on his birthday, as does his Uncle Billy. However, Beaver cannot resist spending some of the cash on a model car. So here's the problem -- inasmuch as he was so adamant about not getting "toys" for his birthday, and he hasn't asked permission to purchase the car, Beav must now figure out a way to hide his new acquisition lest he lose face in front of his parents.