We're all used to seeing different approaches to 404 errors. I followed what turned out to be a broken link to an article on the Dallas Morning News' website, and this was a great result:
"Something has gone wrong...
Put it before them briefly so they will read it, clearly so they will appreciate it, picturesquely so they will remember it and, above all, accurately so they will be guided by its light. -- Joseph Pulitzer"
Not exactly a random thought, but it was a random click!