In the otherwise forgettable movie Cocktail, when Tom Cruise’s character Brian Flanagan abruptly splits with his date Bonnie, she pleads with him not to let their relationship end badly. He replies “everything ends badly: otherwise it wouldn’t end.” The turmoil in foreign exchange markets caused by Switzerland’s abrupt ending of its Euro peg may be such a bad moment for the Euro—and it comes figuratively moments before another likely bad moment, ...