The gods of marketing axe whimsical but implacable: 80 percent of new products fail. Why did Chocolate Styling Mousse achieve astounding success while Top Coverage (hair colored spray paint for bald spots) barely warrants shelf space. Fickle indeed are the gods who sweep Pringles into our kitchens and Parsnip Chips under our rugs. And who among you mourns the passing of Gorilla Balls (vitamin enriched malt candy)? Of course, these fail-ures, so hopefully undertaken, must be accepted with good grace, studied, and then set aside without regret.The health industry, veritable babes-in-the-woods when it comes to marketing, also suffers from the slings and arrows of misguided fortune. To think that a health food store sponsored the news broadcast that began with the question, “Does an apple a day cause cancer?” Between advertisements one learned that a chemical widely used in aboriculture caused virulent cancers in laboratory mice — and very likely could be found in your apples, applesauce and even apple juice. And let us not forget the editor of one local newspaper who was so insensitive as to place a full page ad for a hospital directly across from a story headlined “Elderly Woman Denied Admission, Dies.”