Residents of the Czech Republic consume more beer per capita, but there's no stereotype quite like that of the hard-drinking Irishman. There are plenty of explanations for the long-standing link between St. Patty's and imbibing (among them, that St. Patrick allegedly brought distillation to the Emerald Isle), but whatever the original reason, these days, Americans of all origins seize on March 17 as an excuse to wear green, belt out some pub tunes and toss back Guinness.