One of my more memorable interviewing moments was when I interviewed to work at a resort. My boss was a colleague to the manager at this resort, so I was able to get feedback after the interview.
I went into the interview confident and prepared. I brought with me a portfolio of comment cards and projects I worked on, and was excited for the opportunity to meet with the property's managers. Little did I know at the time that I was probably "too prepared" for the interview.
Since this was a lateral move from one property to another, I thought it would be a cinch that I'd be hired. I had the experience, the drive, and the personality, but unfortunately it may have come across as overconfidence in the interview.
A couple days later, I asked my boss what she had heard from the property. She told me that they were going in a different direction because they felt I was "too polished". Taken aback, I asked her what she thought they meant by this, to which she replied "Well, to be honest, sometimes people feel threatened by anyone who comes in who might be smarter than they are, and they won't hire you for that reason."
It made me feel better about the situations, and made me realize that maybe sometimes being "too prepared" in an interview may not be such a bad thing.