Actual research, conducted by a genuine specialist in the field of hair science (really!): Irish brewer Guinness commissioned a study to answer one of the critical issues of our day. How much beer is wasted by becoming trapped in facial hair?
The answer: (And may I remind you that this is the result of a bonafide scientific experiment?) Over the course of a 180-pint year, each hirsute tippler lost about a pint and a half of stout to his 'stache.
Fortunately, American ingenuity offers a solution to this problem. Missouri's Whisker Dam company sells a copper shield that fits over coffee and beer mugs, with a slotted opening suitable for hair-free sipping. The motto: "It's like an umbrella for your face."