Guest Star: Michael Trucco

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  The Bath Item Gift Hypothesis
  Season 2, Episode 11 - Aired December 15, 2008

  Leonard starts working with a cool, handsome colleague at work, but things go awry when the colleague starts dating Penny. Meanwhile, Sheldon's obsessive gift-giving etiquette irritates the whole gang, while Penny's Christmas gift for Sheldon leads to a memorable moment.

  Appeared as David