Originally posted by: mugs
I agree that it's a bad question. Look for any any thread about this question, I'll be in there posting about what a stupid question it is.

I don't think I've ever been asked it in an interview, which is good. But if they ask you what your BIGGEST weakness is, which is often how I've heard it phrased, then I don't think you can give a weakness that could be turned into a positive, because EVERYONE has some weakness that can't be spun in their favor.
What kind of answer the interviewer expects really depends on the interviewer. If I were interviewing you, I would not want to hear you lie to me and tell me your biggest weakness is something you can spin as a positive. I would like to think most interviewers can see through that BS, but perhaps I'm giving HR people too much credit.
If I were interviewing you, and I asked you that question (which I wouldn't), I'd want to hear a REAL weakness and I'd like to know how you deal with it. That gives me more useful information about you than a BS weakness-that-isn't-a-weakness.
My point is, I don't know that your assumption that they're testing your interviewing skills is correct. That's not useful information to them. An honest answer to the question gives them useful information. I guess a dishonest weakness-that-isn't-a-weakness answer gives them useful information too, but it's negative information - it tells them that you're dishonest and that your performance in the interview is more an indication of how well prepared you were for the interview, not your skills as an employee.