NBC Amy Schumer’s first-ever gig hosting Saturday Night Live was widely anticipated for a number of reasons: Few comedians this year have had more success with the topical, incisive, irreverent sketches SNL has pioneered. But her debut might be best remembered for one particularly timely short above others. In a sharp, unsettling video skit, Schumer played a woman waiting in a restaurant alone, as the camera cut to scenes of other cast members going about their days.