Louise tells George that her mononucleosis diagnosis was the result of a clerical error, but he decides that he prefers his newfound mental acuity to sex with her. She breaks up with him in sexual frustration. George, however, has sex with a Portuguese waitress, having calculated the low odds of this opportunity. He arrives at the school to meet Jerry, but with his intellect back to his usual, he can no longer do the presentation. Jerry goes in, and bombs. Talk show host David Letterman informs Jerry his appearance has been canceled because of the middle school mishaps.