[FalconSensei]

> The other class of interviewers are those that want you to succeed. They will answer questions, and help clarify things. Even if you are unqualified for the role, and they know it, they still want to help you along so they can see your best work.

That's how I go about it. Even unprepared candidates can return someday with more experience/knowledge, or apply to a different position where they can succeed - or letting their friends/acquaintances know about the role.

Also, as we can see in this post, a bad interview experience can really taint a company's image, which can to some degree prevent people from applying