 First, causings of evils like deaths of innocents are commonly distinguished from omissions to prevent such deaths. Holding a baby’s head under water until it drowns is a killing; seeing a baby lying face down in a puddle and doing nothing to save it when one could do so easily is a failure to prevent its death. Our categorical obligations are usually negative in content: we are not to kill the baby. We may have an obligation to save it, but this will not be an agent-relative obligation, on the view here considered, unless we have some special relationship to the baby.