I never believed the whole "95% of interviewees fail the FizzBuzz test" until I started interviewing candidates. People with 15 years of "experience" on their resume would regularly fail or give up.
This is absolutely true, and mind-boggling.
Our company has been hiring senior-level Java developers for years and I've been in on them for much of that time. Few of the applicants actually get through the [literally] sophomoric coding exercises we do. (We have the same problem with junior-level ones, too, so it's not the amount of time elapsed since school...)