It’s quite possible that the German Train Drivers’ Union (GDL) has made more enemies than friends in recent years. In 2014 and 2015, it repeatedly called for widespread, all-day strikes in an attempt to achieve higher wages and better working conditions for its roughly 35,000 members – locomotive drivers and other railroad personnel. “All engines cease without your elbow grease.” In this case, the defiant workers’ slogan was quite literally …