The worst answer to "What's your weakness?" (Yes, a candidate ACTUALLY said this in an interview)

I suggest to my clients, generally students seeking their first real job in their major or career field to have a long look at themselves and decide at least three weaknesses. I explain a weakness is something within you that you aren't satisfied with, and it is within your power to change it. I then suggest they compare their weaknesses with what the potential employer is looking in terms of strengths...Then choose the weakness that is the least important to that employer. As I describe it, 'The lesser of the evils.' But, they must practice saying it out loud and HEAR IT, better have someone else listen and write down what they heard, then look at what was written. Is it what you wanted that person to hear and remember? If not, change how you present the answer, but DO NOT LIE. As soon as you say your greatest weakness, then define why YOU, don't like it--how is it impacting you so that you would want to change. Then give an example how you are working on it. See it as a "bad habit" to break, but one you are committed to achieving. But, this has to be thought-out, maybe even practiced out-loud, and genuine. Show them you face challenges, even your own with determination and a don't give up attitude. I hope this made sense.

i also HATE this question and avoid it at all costs when i'm interviewing candidates. i do exactly what the first poster suggested, i ask about the project you're most proud of and a time when either things didn't go the way you suggested or how you dealt with being given poor direction. identifying how you handled a difficult situation is far more important for me to understand than, you tell me your weakness.