Lauren Conrad and Mary-Kate Olsen have something in common -- a mutual distaste for Spencer Pratt! While promoting her new movie, The Wackness on The Late Show With David Letterman, MK gave insight into what her former classmate Spencer was like in high school. "He used to play on the soccer team for my high school," she said. "He does not have a good temper. He walked out of a few games. He would walk off the field. He was like, 'Me or the coach!'" When Dave said he was surprised that Spencer played soccer because he looked like a guy who never broke a sweat, MK said, "Oh, my God -- that brings up stories! I don't know if I should talk about it." And she didn't -- her Spencer bashing pretty much ended there. Aw, we wanted the good stuff!