If you hired somebody before, you know you could have hired someone great, or someone bad. If you have both experiences, you can ask if they want to hear a bad hire experience or a good hire experience. Sometimes the question will be, tell me about the time you made a bad hire. In that case, then you don't have to ask. I'll give an example of a good hire and a bad hire.
The first question is straight forward. This person took it one step farther by making a phone call and encouraging the candidate to join his team. But the second answer is an example of doing everything right, but seeing bad results. You can use something like this, but if you do, you must think of follow up questions such as, 'what did you do to this employee? What happened in the long run? Did you end up firing this person' But I recommend you think of a situation that you personally experienced. Then you can answer all follow up questions easily. But if you never hired anyone before, then simply say that. It shouldn't hurt unless it is for a recruiting position.
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