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			Human nature:
 Alice: "I just baked thus plate of chocolate chip cookies.  Do you want one?"
 John: "Thank you, but no.  I'm on a diet and am not eating sweets."
 Alice: "Are you sure?"
 John: "No, but thank you."
 Alice: "Just have one.  One won't kill your diet."
 John: "No.  Definitely no.  I promised myself I'd stick to my diet."
 Alice: "Last chance.
 John: "No . . . Okay, but just one."
 Alice: "Okay. Here you go.  Don't worry, one cookie won't ruin your diet."
 John: "Aw what the Hell.  Might as well make it two . . . No three."
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