The worst I've ever done while drunk is just violently throw up black vomit (due to jager) in a toliet. I don't get drunk much as I'm able to hold my drink quite well.
A new friend of mine however, after meeting her for only the second time, kicked a sample pot of paint down my stairs by accident while drunk, then walked it through the house a bit before passing out on the sofa. Me and 2 other friends were up to 4 in the morining trying our best to clean it up, but failed. I had been bricking it over what my parents would do when they returned home (as they had been out since the day before), but when they did get home, they laughed.
Luckily we have not yet decorated where the paint was kicked, and it came off of almost every piece of clothing and whatever it got on.
Its quite amazing how a small pot of sample paint went pretty much everywhere down the stairs and hallway. My stairs now have 3/4 of the carpet missing.