Jay Leno Has a Few Snappy Head Injury Bits 7.61K Hamilton Nolan 09/29/09 09:06AM Filed to: funny jokes funny jokes Jay Leno Conan O'brien Nbc Alleged jokes Television Alleged entertainment Geniuses Injuries Funnyman Jay Leno "cracked" (call me, Jay) some "jokes" last night about Conan O'Brien's head injury. Maybe Conan knocked himself out just so he wouldn't have to watch Jay Leno, on NBC television! That's as funny as the actual jokes.