A YouTube video, showing a pack of wolves going wild in downtown Moscow and 'charging' at Russian traffic cops, became the latest online hit, scoring over a million views. But many had trouble working out if it was real or fake. Eventually, the truth revealed itself - with a brand of vodka being behind the viral hit. It appears it was part of a highly-focused ad campaign for Eristoff, a spirits-maker which is trying to launch itself onto the Russian market.