This is fun, and there’s a video, too. From good.is: Sneaky billboard disappears in the presence of Russian authorities.

Ordinarily, advertisements are designed to capture the attention of as many people as humanly possible. In a particularly Yakov Smirnov-ian turn turn, however, one high-tech Russian billboard is bucking convention by actively removing itself from sight in the presence of anyone from that country’s police or military. [continue]