Dumb and Dumber: Business 2.0 has released its list of the 101 Dumbest Moments in Business for 2005, and as always it makes interesting reading for public relations professionals, who should at the very least check out the “Advertising” and “Companies” sections of the list.

Classic advertising goofs include Anheuser Busch’s "Mr. Discount-Airline-Pilot Guy" ad, which for some strange reason alienated the folks at AirTran—a major Budweiser customer; Boeing’s ad for the Osprey assault helicopter, which depicted the war bird attacking a mosque and contained the copy: "It descends from the heavens. Ironically it unleashes hell;’ and WPP creative director Neil French’s explanation for the absence of female creative directors in the ad business: “they’re crap” and eventually they "go off and suckle something."

In the “Companies” section, meanwhile, there’s Google’s boycott of CNET, Guidant’s decision not to tell doctors and patients about its potentially fatal defibrillators, and—one I somehow missed at the time—Russell Stover’s attempt to market six-inch chocolate crucifixes as an Easter candy treat.