Neither eating nor drinking is permitted inside the auditoriums. If you are hungry, please have a snack before the concert or during intermission. If you feel the onset of a cold or allergies, please use a cough drop to ensure that the concert experience is as pleasurable as possible for you—and those around you. Kindly note the next important step: unwrap them ahead of time.
If you cannot suppress a cough, it is perfectly acceptable, extraordinarily polite even, to excuse yourself from the Hall until you feel better.
Posted in: concert etiquette