You may have heard a fantastic tale of Jack and his beanstalk grown from magical beans. And you may be sure that such beans do not exist. Well, children, listen closely... There is a magic bean that your parents know all about. They are probably in your house at this very minute. You may have smelled them brewing in the mornings. These magic beans calm grown-ups when they're grumpy. They wake them when they're sleepy. These clever...