This television episode refers to:
July 14, 1989
While in the restaurant at lunch, Michael reveals some disturbing news to Erin about Andy's previous relationship with Angela. Erin covers her face with her hair and begins to moan, something she did as a child to calm herself. Michael is embarrassed by the spectacle she is making, and shouts out 'I'll Have what she's having!", a line made famous in the movie 'When Harry Met Sally'.