I know it's dumb but this is my favorite idea: <i>The user goes to MegaUpload. It says “HTTP Error 460” (this doesn’t exist—you would be making it up): “Seized by the FBI”.</i><p>Seriously, they should have an alt-text for that image. In fact, I'm quite certain that "Section 508" legally requires the FBI to have an alt-text for that image.