"Invoked as a shorthand benchmark for minimal counter-service, this fast-food restaurant is the basis for a common informal test: if a customer wouldn’t tip for equivalent service where food simply comes off the grill and is handed to them, they generally won’t tip at a local café either. It embodies quick, limited-service transactions—takeout and counter orders—for which many people view gratuities as unnecessary or purely discretionary." - ByAli Francis