Pet peeve number 6397:

When producers or resellers insert one word from another language in a product name, but do it in a place where it is syntactically wrong in that language.

Case in point:

^ It should be "Selezione di Sicilia" if anyone is wondering.

Although this doesn't bother me nearly as much as the terrible mispronunciations I hear of "bruschetta".

Or every time a menu says "with au jus".