Headcanon where Ludwig and Feliciano have been friends for a very long time. Germany notices that Italy never curses, seriously, like never does. He instead replaces curse words such as "shit!" Or "Goddamn" with "shoot" and "oh darn!" Germany chalks it up to Italy just being himself and ignored it. But one day, both nations are in Germany's car, headed to a meeting, and Germany as per usual does his hazardous stuff whilst driving and all. Whilst chatting someone else cuts him off and Italy let's rip the loudest "MOTHERFUCKER!" Germany has ever heard in his entirety of life, refrained from speaking, he just sits wide eyed for a solid four minutes.