Once again it's impossible not to laugh, even if you don't really want to. Peter takes a test, and finds out he is mentally retarded, and starts using it to his advantage. The opening is hilarious as Peter plays Trivial Pursuit with his friends and family, taking a serious amount of brainpower to answer questions specially modified for him e.g What colour is a fire truck? and then bragging after he wins. Yes, it's offensive. Yes, it's in bad taste. Yes, it's not the cleverest humour in the world. But it's exactly what we want from Family Guy. Laughs. Which is your favourite Family Guy episode? Share your thoughts in the comments below.