If the thought of drinking beer that was once inside another person turns your stomach, you might have some sympathy for Corona beer lovers in 1987. By then, Corona Extra had established itself as a sensation in the United States, despite having been introduced to the market only eight years earlier in 1979. Its branding as the ultimate "California surfer" beer — synonymous with carefree, beachside living — quickly made it a national favourite. By the mid-1980s, Corona was th