 The single " Undone - The Sweater Song " was described by Cuomo as " the feeling you get when the train stops and the little guy comes knockin ' on your door . It was supposed to be a sad song , but everyone thinks it 's hilarious . " The video marks one of the early directorial efforts of Spike Jonze , whose pitch was simply " A blue stage , a steadicam , a pack of wild dogs . " The video became an instant hit on MTV . The final single , " Say it Ain 't So " , was again inspired by Cuomo believing his parents split up when he was four because he thought his dad was an alcoholic . The music video , which was directed by Sophie Muller , was less successful than the previous Spike Jonze @-@ directed video . It featured the band performing in the garage of their former house , and the bandmates playing hacky sack in the backyard . 
