Renowned for its bustling nightlife, the St. Pauli district in Hamburg has long had issues with unpleasant street smells and stained walls. So a group of local businesses got in touch with the inventors of a special hydrophobic paint that would bounce liquids back at urinators. They sprayed coats of this paint on the sides of buildings along with signs reading, HIER NICHT PINKELN! WIR PINKLEN ZURüCK. (“Don’t Pee Here! We Pee Back.”)
