From our friends at TheLadders. Read about interview "don'ts" from the folks that witnessed the "Seven Deadly Sins" personified by interview candidates. Actually some of the stories are from the candidate's perspective. My favorite one so far, though more of a recommendation than a story:

"Do not come to an interview with homemade barrets, made out of ping-pong balls, in your hair!"

You can't make this stuff up and don't doubt it's the truth. When you work in the staffing industry, you meet a lot of characters.