PROBLEM —You're travelling to Florida to board a ship for the Caribbean cruise you've always dreamed of. You get through customs at the airport, and all is well. Arriving at the dock to board the ship, you realize that some of your baggage is missing. You have your critical ID, wallet and smartphone in your carry-on, but you absentmindedly packed your proof of vaccination in another bag—and that bag is with your checked luggage.
You can make a call to your doctor and ask their office to send you proof via email, but that will take some time and they may not accommodate your request for privacy reasons—meanwhile your cruise is not going to wait.