I once took a short trip through the south of Germany near Nuremberg … we were just on a random trip not knowing what we were doing in a rental car. We stopped at a gas station to get gas and got some help from an attendant, a young German teenager who spoke some English.
He talked to us in the weirdest accent I ever heard … a combination of English with a German accent and a touch of southern Texan or southern American. He had grown up learning English from army personnel from the American US base nearby.