I recently opened a position in one of my favorite companies, Diageo (NYSE:DEO) at a price of roughly $112. Most Americans have probably never heard of Diageo, but they (along with Brown-Forman and Pernod Ricard) control the bulk of the major liquor brands that we regularly purchase. Diageo owns Smirnoff and Johnnie Walker, the world’s best selling vodka and whiskey. They also …