It’s Thursday night in the city of Cologne. Parking lots are full, the streets are clogged, and the tow trucks are constantly at work. Parking enforcement is called in. Hostility is a part of their job, and in general they’re the target of verbal abuse. This time, the level-headed Dagmar is horrified by the audacity of some drivers. Last week, someone threatened her with murder. Working the roads is becoming more and more dangerous, as last year seven traffic wardens were attacked in Cologne…