<P> In the episode, Mitchell and Claire's mother visit the family months after she embarrassed Jay in front of his family on his wedding day . Phil and Claire try to judge whether Haley's boyfriend is acceptable to take her to a concert or not . Mitchell goes to his father's house to tell him that they are inviting his ex-wife to a party, but he does not tell Gloria . At the reunion, Gloria and Jay's ex-wife begin to fight, but Haley's boyfriend stops them . </P> <P> "The Incident" received positive reviews from the television critics and received a 3.6 / 10 in the 18 - 49 demographic according to Nielsen Media Research . </P> <P> DeDe (Shelley Long), Claire (Julie Bowen) and Mitchell's (Jesse Tyler Ferguson) mother, stops in for a surprise visit and wants to try to make up with everyone that she offended during "the incident" that she caused at Jay (Ed O'Neill) and Gloria's (Sofía Vergara) wedding . DeDe had become progressively drunk during the event, eventually having to be carried out, making a scene . In the meantime, Haley (Sarah Hyland) wants to attend a concert with her boyfriend, Dylan (Reid Ewing), but Claire and Phil (Ty Burrell) refuse to let her go . </P> <P> Later, everything comes into play when the whole family meets at Claire's house for dinner . Dylan sings a song to prove that he is good enough to take Haley to the concert . While the song still sounds appropriate Phil and Claire are considering to let her go with him at the concert . When though Dylan starts singing the words "I just wanna do you, do you . Do you wanna do me, do me" and the parents see that Haley is smiling, they change their minds . The next morning everyone sings Dylan's song to themselves . </P>

Who plays claire's mom on modern family