JJ, you lifted that from the story of the Chafetz Chaim and the President of Poland. In an case, presumably the idea was to encourage people to learn. His points were obviously lost on those who do not understand creole German.
Ubiquitin, Yiddish is broken German. Agnon wrote a story about a Polish rabbi who went to Germany for medical treatment and was constantly corrected when he tried to speak to the locals.