Developers have come to dread interviews. What sort of silly, gotcha question that has nothing to do with building web apps whatsoever will I have to stress about this time? If I were hiring a new coder, I'd asking them an almost laughably simple question: "Is it okay to send an email from a controller? Explain why."
It's such a basic question, yet I guarantee the answer you are given will speak volumes about the type of developer you're interviewing.