Nolan tells House, "But you had been abusing Vicodin for years. Never had delusions. Never had trouble sleeping. Never had any problems other than narcissism and antisocial behavior, until two colleagues died. Your father died. Your issues run deeper than Vicodin."
House says "Did you deduce that by taking off your sunglasses to the strings of a Who song?" This is a reference to a common plot device seen on 'CSI: Miami' in which the character Horatio Caine deduces something about a crime and removes or puts on his sunglasses as the main title theme "Won't Get Fooled Again" by The Who begins.