I have noticed some reports concerning a Florida law suit between the family of baseball hero Roger Maris and the Anheuser-Busch company. You can follow the case by reading articles like this in the Gainesville Sun but this passage notes one of the key issues which came to me as a bit of a surprise:
The attorneys said statements were based on court documents believed to be true, but a TV-20 report was shown in court in which Jacob said "Mr. Maris" repackaged old beers and sold them as if they were new in violation of the brewery's freshness policy. On questioning from Maris attorney Madison MacClellan, Jacob said he had no proof the Maris family was aware of any tampering if tampering was occurring, and he agreed the percentage of outdated beers found in Maris' territory - a tenth of a percent - was far less than the same year's 4 percent national average and 7 percent average in the Midwest, where the brewery is based.It is not so much surprising that this would be alleged as it would that it would be a practice. Simple me being what I am, I would have thought that the actual cost of the beer in a mass produced beer would not be significant after R+D, marketing, branding, transportation...that sort of thing so that salvaging the actual beer would not make economic sense.