Let me start by saying, this article has everything I've ever wanted in a story: booze, addiction, monkeys, and Russia.
So according to YahooNews, the Rostov zoo has sent Zhora, one of its chimps, to rehab, because he can't kick his beer-drinking and smoking habits.
"The beer and cigarettes were ruining him. He would pester passers-by for booze."
And yes, of course passers-by at a zoo in Russia had booze on them. Who goes to the zoo park without some beer? And for those of you who don't know, the Russian language is so awesome it actually has a verb that means "to get an animal drunk." The imperfective is опаивать, and the perfective is опоить. Yes, this is the Russia I fell in love with.