To stop her 4-year old daughter from biting her nails, her mother tells her it'll make her fat.
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"I won't do it any more, Mom," says the daughter.
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Next day they are out walking when they meet a very fat man.
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"If I bite my fingernails, I'll be as fat as that, won't I Mom?"
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"You'll be fatter than that," says her mother.
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They get on a bus, and sitting opposite them is a very pregnant lady.
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The little girl can't take her eyes off the woman's belly.
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The pregnant lady feels increasingly uncomfortable under this stare, and finally leans forward and says to the little girl, "Excuse me, but do you know me?"
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And the little girl says, "No, but I know what you've been doing."
