The candidate was applying for a software engineering position, and the panel consisted of our recruiting person, myself (the hiring manager), and a technical interviewer from engineering.
The candidate, according to his CV, was a master of a multitude of programming languages and tools, as well as a seasoned project manager despite only just being about to graduate.
I go first, taking the general and behavioural part as well as some project management questions. Candidate doesn't fare too well on any of the latter - but then, he's a only graduate and we're looking for an engineer. Would have been great if he had some PM skills but it's hardly a must-have.
Tech guy takes over and starts with what should have been a softball question according to the CV. Candidate can't answer it. But, again, we're hiring for a graduate level hire, so maybe take it down a notch. Or two. Or seven.
Candidate can't answer a single one of the most basic questions poor tech guy can come up with. Eventually, I jump in, gently challenging him about the fact that he doesn't actually appear to have quite the level of mastery he claims.
Candidate responds: "I've heard of all of them - and, anyway, I think I'm ready to take on a management level role, so it's not as though I'd have to be writing the code myself."