My name, João, is one of the most popular names in Portugal. You kick a stone and find someone with that name under it. It's the equivalent of John (english), Juan (spanish), Jean (french), Johan (norwegian). It's pronounced like this http://forvo.com/word/joão/.
People pronounce it in all possible imaginable ways: iaua, ioau, joau, ioa, joe, which is both funny and annoying. For me, misspelling someone's name is very rude, so I always try to get them right. I find it equally rude, if the other person doesn't even bother to do the minimal effort to get the name right, or bother to ask first, or misspell it over and over again. How hard would it be to show some personal courtesy ? 
Maybe I should invent a name tag with a loud speaker, or key card, name tag, loud speaker combo.
I wonder what d.i.z. has to say ?
 This is not a rant again someone, just an interesting observation about moving abroad