In public places, it's always important to have multiple translations available for people who may not speak the native language of the region. But before putting it in print, you probably want to double check that the translation is correct, or at least that it isn't a euphemism for something lewd or horrifying.
Thankfully, there are plenty of people who haven't done that. We collected some of our favorite mistranslations of English phrases and words. Enjoy them, because there is undoubtedly an alternate version of this with English translation fails that people are laughing at somewhere around the world.