Surely we all have memories of a vacation that didn't go quite right. A tour guide who was a disaster, a small hotel that seemed lovely but turned out to be falling apart, a missed train, a canceled plane, a stomach ache from buying food in the wrong place. And, years later, when you look back on that summer... Often you don't know how it happened, but you remember it with a laugh. If you're a person with a sense of humor, you have more options for surviving a bad vacation.