3 brewery presidents walk into a bar... 3 brewery presidents walk into a bar. One from Corona, Coors and Guinness. The president from Corona says to the bartender, ""Give me a Corona, the best Mexico has to offer"" and the bartender hands him one. Next, the Coors president orders a Coors saying ""Hand me the only beer in the world made with water fresh from the Colorado Rockies."" Then the Guinness president walks up to the bar and orders a Coca Cola. The bartender, a bit taken aback, hands him …