The German language is why other nationalities were nervous about Germans for decades. I dated a German girl when I was in the Army in Gelnhausen. I was so glad that she could also speak English, because when she was getting turned on, I sometimes thought I was being threatened with my life. (She actually spoke better English than me, because she was taught by someone who knew English, and it wasn't adulterated by Americanish yet.)

The sign is interpreted as "floor sanding machine rental." In Scrabble that's worth 750 points.