It's hard to decide what was better Mary-Kate Olsen revealing dirt about famed reality villain Spencer Pratt from her high school days, or Letterman point-blank calling him a worm and truly meaning it. She was promoting her new Ben Kingsley movie The Wackness when the conversation took a turn to Pratt. Turns out the media-whoring star played soccer on Olsen's high school team and had a few anger issues. Yeah, definitely wouldn't pin him someone who would storm off the field when he didn't get his way.