Consider these two hypothetical situations: 1) A competitive figure skater loosens the skate blade of a rival to aid her chances of winning; 2) A competitive skater notices that her rival’s blade is loose and fails to warn anyone, which aids her chances of winning. In both cases, the rival skater is seriously injured and loses. Whether due to the competitive skater’s action or a willful failure to act, the same amount of harm is done. Many people differentiate between these two situations: in the first case, the skater created and enacted a deliberate plan to cause harm, whereas in the second case, she simply failed to prevent foreseeable harm. And surely, many people say, causing harm is worse than failing to prevent it.…