>A friend was brought to a CA DevCon at their expense (as a User Group leader) right after they bought Clipper from Nantucket. He came home with the FUNNIEST stories - seems all the attendees except the Clipper programmers were main-frame DB2 programmers who had a more corporate culture/lifestyle. CA was totally appalled at the ClipperHeads standing up in meetings and demanding answers to the 5.0 bugs, and the other attendees couldn't understand why the ClipperHeads weren't wearing suits/ties to every session.
>

Microsoft also has user shock when they "mergerd" with Fox Software, but I don't think it was to that extent.