 During the contest, Peter and Mickey talk about American looks and diet in a drunk language.After the contest Mickey finally believes that Peter is his son, feeling that nobody but a member of his own family could beat him in something like a drinking contest.Although Peter's excited to have formed a bond with his real father, Brian points out that while Francis may not have been Peter's real father (and obviously wasn't the nicest person ever), he did raise Peter like he was his own son, showing that deep down, Francis really did love Peter.