They're the "Oh no" moments of travel, those unforgettable times when something unexpectedly goes wrong and you find yourself in a seriously sticky situation. Maybe you return to your rental car to find it locked in a parking garage. Or you emerge from a crowded plaza and discover your wallet is missing.

We've been there, too. So here are the play-by-plays to get through 10 sticky travel situations—then get on with your vacation.