In line with what we've come to expect, Madonna talked without inhibition when she visited David Letterman last night. Along with claiming that she'd "rather get run over by a train" than be married again, she also shared just what it was that instigated her infamous March 1994 Letterman appearance, when she dropped the F-bomb 13 times: the joint she smoked beforehand. Kind of explains the goofy smile and uncontrollable laughter, too. [The Daily Swarm]