Tunes in your head …

… Where Everybody Knows Your Theme Song. (Hat tip, Dave Lull.)

Things that don't make sense when you say them often sound fine when you sing them. Gilligan's three-hour tour, for instance. Or the theme song to the popular sitcom of the early 1960s, The Patty Duke Show, which explained that the merry mixups that occurred between the two lead characters—both played by Oscar-winning actress Patty Duke—happened because they were, as the lyrics convinced us, "identical cousins."