Letterman Calls Kardashian Boyfriend 'Punk'

How bad would you have to be to have David Letterman call you a "punk" when it comes to relationships? Enter Kourtney Kardashian's baby daddy, Scott Disick, on Wednesday's Late Show.

How bad would you have to be to have David Letterman call you a "punk" when it comes to relationships? Enter Kourtney Kardashian's baby daddy, Scott Disick, on Wednesday's Late Show.