Back in 1997, an unemployed former hotel manager named Bertram Rohloff had a brilliant idea. Unable to obtain the necessary permits to open an outdoor sandwich stand, he found a way to circumvent the entire bureaucracy and wound up making portable food vending history. He invented a wearable propane sausage grill that requires no special permit, as neither the grill nor the food ever touches the ground. Thus, Grillwalker was born, a sausage oven with legs that can bring hot sausages to the hungry masses at some of Berlin's most heavily-trafficked urban spaces. As The New York Times points out, Rohloff's 15 sausage walkers are now fixtures at such sites as the Alexanderplatz, bustling Friedrichstrasse train station, and even outside popular nightclubs. ]]>