A package of airline peanuts features the instructions, "Open packet and eat contents," while the label on a jar of Saintsbury's peanuts says, "Warning—contains nuts." The packaging for a Husquavarna chain saw warns, "Do not attempt to stop chain with your hands." A bottle of flavored milk drink instructs, "After opening, keep upright." A CycleAware helmet-mounted rear-view mirror warns, "Remember—Objects in the mirror are actually behind you." A car lock that loops around the clutch and steering wheel warns, "Remove lock before driving." And finally, "This camera only works when there is film inside."

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