Germans take their day of rest very seriously. Shops are shut, people take leisurely walks and there will be absolutely no domestic drilling thank you very much. It is against the law to drill at any time on a Sunday. And it doesn’t stop with DIY either, take note that throwing away bottles in the recycling bins is also strictly forbidden outside certain hours – just check the containers.
In the same vein, Germans like their peace and quiet and it is STRENG VERBOTEN (strictly forbidden) to tune your piano at night.