Previous warnings:
http://boards.straightdope.com/sdmb/showthread.php?p=2925205
http://boards.straightdope.com/sdmb/showthread.php?p=4612367
http://boards.straightdope.com/sdmb/showthread.php?postid=4714104
http://boards.straightdope.com/sdmb/showthread.php?p=4722704
http://boards.straightdope.com/sdmb/showthread.php?p=4792581
(A “thin ice” warning from Dex the same month in Cafe Society)
http://boards.straightdope.com/sdmb/showthread.php?p=4976282
http://boards.straightdope.com/sdmb/showthread.php?p=5389142
Last straw:
http://boards.straightdope.com/sdmb/showthread.php?t=290624&page=2&pp=50