It's been reported that George Michael was caught in a public toilet, detained by the police in London, and released with a warning about some minor drug possession. CNN carried the story this morning. Three blogs had the honor of appearing at the bottom of the story.
One of them, entitled Maybe It's Just Me, asks the obvious, "Why, why, why!"
Another one, Nothing Personal, asks, "Has he really been reduced to scoring on the streets like Tatum O'Neal?"
And the third, Brad Laidman, hits the nail on the head. "Stupid Coppers - Been there, Done that. George Michael’s public bathroom vice is not drugs!"
Having a monkey on your back is a fairly old expression used to describe an addiction. The Urban Dictionary covers it pretty well.