Belglish

Belgium has 3 official languages - French, Dutch and German - and Brussels is officially bilingual French-Dutch, even if the French-speakers predominate. It is partly to avoid having to choose between French and Dutch, or using both, that you often see signs etc. in English - but sometimes of a rather odd variety! I presume the author of the poster about clearing up after your dog (in fact, speaking as a dog proposing to educate his master on this subject) has never visited America and been asked if he wanted to save some of his meal for later...