Faced with the choice between creating a risk of harm and taking a precaution against that risk, should I take the precaution? Does the proper analysis of this trade-off require a maximizing, utilitarian approach? If not, how does one properly analyze the trade-off? These questions are important, for we often are uncertain about the effects of our actions. Accordingly, we often must consider whether our actions create an unreasonable risk of injury — that is, whether our actions are negligent.