#WritersCoffeeClub June 25: How frequently do other languages (or conlangs) appear in your writing?

Does legalese count as a (con)language? I once started a story with a wizard having hired a law firm because he had been granted a wish by a mercurial trickster god, so the wizard had the lawyers draft a 173 page wish with all terms unambiguously defined and all possible ironic consequences disclaimed.