December 20, 2007, 11:10 and 11.30, sunny, but cold. I work at home and have time to get a haircut. The screws I find on the way to and back from the hairdresser in the Mörsbergerstrasse, the dark one on the sidewalk, and the broken one at the base of a scaffolding on the corner of Mörsbergerstrasse and Haltingerstrasse.