Note to guys who think they can beat up that guy in “Die Hard” — Bruce Willis will likely ignore you. “It took me a long time to understand that a lot of guys wanted to be the guy who kicked John McClane’s ass,” Willis, an ex-bartender, tells Men’s Journal. “And it’s really difficult to explain to someone who has been overserved, ‘No, I’m not that guy.’ ” Willis said the nicest guys often go craziest after drinking brown alcohol: “Next thing you know, two big guys had their arms and were sending them outside with the warning not to come back for two weeks.”