lollipop lady: a woman hired to help children cross a road safely near a school
entity: that which is perceived or known or inferred to have its own distinct existence (living or nonliving)
survivor guilt: a deep feeling of guilt often experienced by those who have survived some catastrophe that took the lives of many others; derives in part from a feeling that they did not do enough to save the others who perished and in part from feelings of being unworthy relative to those who died