I came across a reference to this on a US TV prog yesterday - apparently it does exist, and it's allegedly 'one of the most popular drinks worldwide': 3/4 pint Guinness® stout 1/2 shot Bailey's® Irish cream 1/2 shot Jameson® Irish whiskey Add the Bailey's and Jameson to a shot glass, layering the Bailey's on the bottom. Pour the Guinness into a pint glass or beer mug 3/4 of the way full and let settle. Drop the shot glass into the Guinness and chug. If you don't drink it fast enough it will curdle and increasingly taste worse. How thrilled would the Spams be if someone invented a cocktail called the 9/11? What would go in it?