I know, right? How dare those foreigners come to our country on vacation, stay in our hotels, eat in our restaurants, and buy $2300 worth of crap from our stores? Can't you see they're destroying America? I mean, whenever we Americans visit another country, we spend hours upon hours studying the language of that country, ensuring we are 100% fluent before hopping on the plane! If you didn't catch the sarcasm, I attended a university where a very high percentage of students study abroad, and now work at another university where an even higher percentage of students study abroad. I know a lot of kids who have spent semesters in Europe and Asia. Not a single one of them bothered to learn the language. A couple were fluent beforehand, but not one picked up more than a few sentences while actually studying in the country. Not even a girl who was majoring in linguistics. The most common excuse is, "well, everyone there spoke English." Now I'm a patriotic American. (And yes, I realize this story takes place in Canada. Sue me.) But my grandmother, a Spanish immigrant, lived in America for 20 years without learning English fluently, during which time she ran a small business, paid her taxes, and raised four children (all American citizens). So yeah, at work, if a paying customer wants to speak to me in Spanish, I'm more than happy to oblige. And if that offends morons like you, well, then I'm even happier to do so!

Also, the first commenter seems to imply that you're only supposed to learn the language of that country if the country is English-speaking. Which is, of course, a load of crap. I live in Belgium, and we're fairly known for being good at learning languages/adapting to other people. I work in fast food, and most of the time I can speak Dutch, but a lot of the time I have to speak English, German or French as well. And, if possible, anything the customer wants to speak. Agreed, if you actually move to a different country, it's only polite to learn the language, but it's not needed when you go on holidays.