ABSTRACT
It is not hard to think of counterexamples to that old saying, "There's no such thing as a free lunch." What about the time you found a coupon that got you a free burger with a shake and fries? But add one more word to make the aphorism "There's no such thing as a risk-free lunch," and suddenly the counterexamples dry up. You might, for example, have tripped on your shoelaces and hit your head on the tile floor as you walked into the burger place. While you were there, you might have been injured in a shoot-out between the police and an escaped convict who had stopped for a fish sandwich. A food additive, or the carbon on the charcoal-grilled burger, might contribute to a future case of digestive system cancer. You might have choked to death on a piece of food because nobody in the restaurant knew how to perform the Heimlich maneuver to clear your airway. Life is full of such risks.
