Billy Bob Interview: Worst Case Scenario

So you’re interviewing someone famous, like Billy Bob Thornton. What’s the worst thing that can happen? I’m pretty sure it’s this:

I can understand his frustration, but sheesh. The host had no idea what hit him.

So what’s the worst interview you’ve seen? What would you have done if you were BBT? What would you have done if you were the host?

Or better. What’s the one question or topic that would get you offering answers to questions no one asked?