And he took to Twitter to tell his 1.1 million followers all about it...
"Just got home, found drunk guy peeing on my bldg front door," Cooper tweeted at about midnight Thursday. "He asked for my pic. Instead I took his. Am tempted to tweet it out. Annoying!"
The Coopster never did post the photo.
Not that it makes it any less offensive, but perhaps Mr. Drunky didn't realize he was peeing on someone's private residence. Cooper reportedly lives in a 8,000-square-foot multi-million dollar converted firehouse in New York's Greenwich Village.
Or maybe the guy was just hoping to get a look at Cooper's shiny brass fire pole.