Dane Cook Heckler Steals the Show

9/21/2009 4:40 PM PDT BY TMZ STAFF
Dane Cook didn't even need to be on stage to get heckled this weekend -- because one wacked out drunk dude outside Crown Bar was relentless in trying to get him to tell a "funny joke."

Dane Cook: Click to watch
As usual with Dane, nay a funny joke was told.