I dunno and not taking any position on this stuff absent data. I'm not sure what the 15% thing was with USG. Was it a reg, or a shareholder rights provision?
OT, Did anybody happen to catch a different but also amusing case a few months back re a fish-oil company called Omega Protein? Management filed a press release describing what eventually turned out to be a crude forgery of a far-above-market offer, apparently forwarded to the company by somebody who found it literally on a message board. http://biz.yahoo.com/e/030908/ome8-k.html