S9, E8: On the night before Thanksgiving, Rachel's self-centered younger sister, Amy (CHRISTINA APPLEGATE - "Jesse," "Married... With Children"), ruins everyone's holiday dinner with her uncensored observations. Amy is upset to learn that Rachel would not want her to care for her baby if she and Ross were to die. Chandler is also offended that he is not considered the best adoptive parent either. Meanwhile, Monica obsessively protects her good wedding china. And Joey forgets to join his television cast mates in the big Thanksgiving parade.