Definitely yay.
I had had founded Hinduism and Judaism, and was rapidly expanding to fill up my continent before the English got a chance (CivIII habits die hard). As I proceeded to drop my economy into the tank, I brushed up against the cultural borders of Germany, who was on a different continent just across a narrow channel. Germany got infected with Judaism, England with Hinduism. Being a builder, I figured, "Well, the English are on my continent, so they're obviously the bigger threat. Might as well suck up to them and annoy the Germans." So I switched to Hinduism.
After a while, Bismarck started sending me threatening messages. Obviously, I ignored him; no one's even discovered Feudalism yet! Little did I know, he lauched a surprise naval invasion of archers, horse archers, and axemen, taking a lightly-defended city. After I retook the city and lauched a counter-invasion, he was even smarter. Rather than attacking my beachfront (which was on a hill defended by an archer with Guerilla I), he surrounded my force with good defenders and started churning out galleys and caravels to interdict my sealift capability.