Some comedian who was relatively unknown before this incident occurred by the name of "Lewis C.K." came out of the woods, and stated there were similarities in jokes. While this may be true, the man has no dates to back up when he said these things, or even evidence they are the same.
Dane Cook is known for his extremely crazy behavior on stage. His wackiness adds to the mood of most of his jokes. He uses observational humor, usually stating things nobody ever really noticed about the small things in life.
Dane Cook has the reputation of being one of the most hated comedians by fellow comedians and by many other people. This is due to the fact that he has been accused of joke stealing, as stated above. He's one of those people you can either watch, or just ignore.
Louis C.K.: This is sure funny, I might just come out and say I first said this joke just so I can achieve some fame, despite my jokes being extremely boring and mediocre.
Uh... could it be because people piss on the floor and wash their hands aggressively?
dude: it's the sufi. You know.... Dane Cook.
guy: Who?...oh right that guy. (pause) I hate that I know you.
Retarded audience: HAHAHAHAHAHAHA!! That Dane Cook.....