By the way, there's an interesting article on Slate on the elusive short cappuccino, entitled: "Starbucks Economics - Solving the mystery of the elusive "short" cappuccino."

Essentially it says that Starbucks has made the short cappuccino invisible because the margins are unacceptably low. However, if you ask for one the baristas will comply without batting an eye.

See http://www.slate.com/id/2133754/