Behavioral errors, such as a dieter irrationally eating a box of doughnuts, are more insidious since they are rooted in deep-seated human behaviors.

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Unpasteurized milk can carry salmonella, campylobacter, and E. coli O157: H7, the strain that came to public attention in the nineties when four children died after eating contaminated meat at Jack in the Box.

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"A cat can withdraw, stop eating, develop a medical problem, deviate from normal cat habits -- urinate or defecate outside of box, become destructive, anorexic, aggressive, " says cat therapist Carole Wilbourn, adding that a very anxious cat could even attack the baby or other family members.

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