The procter and gamble story can be found here: http://www.snopes.com/business/alliance/procter.asp
The gist of the rumour was that their logo indicated satanic ties:
P&G's "man in the moon" logo as proof of the company's ties to evil. They see in the curlicues of the moon man's beard an array of 6s and believe that by playing "connect the dots" with the thirteen stars in the logo, three 6's can be made to appear.