What punishment is befitting black men who heckle white comedians? Lynch 'em. That's what Michael Richards, better known as Kramer on "Seinfeld," feels is a proper punishment for the black patrons who had the gall to tell him he wasn't funny during his recent standup act in L.A. On a videotape of the show, Richards yells at the hecklers: "Fifty years ago, we'd have you upside down with a (expletive deleted) fork up your ass." And he didn't stop there. He called the men "niggers" not once, not twice, but a wincing, hammering six times. Stung by the criticism --...