Everyone expects that their vacation will be fantastic. The sun will shine every day and the most unexpected occurrence will be the discovery of an extra cocktail umbrella in your Daiquiri. But travel mishaps can -- and do -- happen. No matter how impeccably the itinerary is planned and how perfectly the bag is packed, some situations are out of your control. You can't keep that storm forming off Africa from making a turn into to the Caribbean just after your plane lands.