Negligence can be characterized as a failure to exercise reasonable care or ordinary vigilance that results in an injury to another. In many ways, negligence simply codifies two fundamental ethical precepts: "ought implies can" (we can¬not reasonably oblige someone to do what they cannot do) and "one ought not harm others." People have done an ethical wrong when they cause harm to oth-ers in ways that they can reasonably be expected to have avoided. Negligence includes acts of both commission and omission. One can be negligent by doing something that one ought not (e.g., speeding in a school zone) or by failing to do something that one ought to have done (e.g., neglecting to inspect a product before sending it to market).