http://clientsfromhell.tumblr.com
The web was still young, it was the early days of Netscape Navigator

We prepared a photoshopped design proposal for the upcoming brandnew website of a corporation: Black text on white pages, with headlines and links using the corporate design colors.

The CEO replied: “You guys are amateurs! Swindlers! I showed this to my son, he knows HTML. This isn’t possible! Everybody knows that in Netscape, pages are gray, links are blue and visited links are purple.”