When your 15yo daughter gives precipitous delivery to a bleating, underweight infant 30 minutes after presenting to triage c "gas pains", you should run around the department loudly yelling, "I don't know what y'all did or who that baby is, but my lil' girl warn't pregnant when she come in here"
When your 97-year old mother trips and falls on the floor and doesn't say anything or really seem to move at all, you should definetly wait 5-6 days before calling EMS. If she starts to feel cold (even though she hasn't said that she's cold), just cover her with blankets and surround her with space heaters. She's probably just sleeping and will get up when she's good and ready. Nevermind the smell and the roaches.