I actually feel almost sorry for the candidates when I read some of these posts, for some of these things I can´t see as that important. I can´t help feel a sense of arrogance, a "he needs this job so he should shup up!" I try to be more understanding with the candidates as I´ve been in their spot myself.However, I prefer not to hire people:
1 - Who come late for the interview
2 - Who don´t know what the company does
3 - Who give me long speeches on how they´ll be 100% committed to the company etc (the more they talk the less they do!)
4 - Who criticize their last employer or so mentions the possibility of filing a suit against them. TJNTIY.

One of my favorites is when we told a young designer to "dress professional and wear a suit". He did wear a suit... with tennis shoes and eye brow piercings. He didn't get the job. Second favorite. Early in my career I worked for a company where the local prison would send their newly released job seekers. On open interview day sitting across from me was a 6'6, 250 lb man who had marked on his application that he had committed a felony. Not quite sure how to handle it I explained to him that we needed to know what he was charged with as there were positions that he would not qualify for (my thinking was cash handling or children). He replied "no Maam, I have no problem discussing that. I killed someone"! Needless to say I was a bit frightened. Then he told me the story of a bar room fight gone bad. Believe it or not I actually placed him with a friend who was a brick mason and willing to give him a 2nd chance. Which he later messed up by getting into another brawl. Thankfully it wasn't with me! TNJTIY.

Hmmmm.....I have a ton of stories....I was asked out on a date by one candidate. I had a candidate that sent me a letter from jail....and another candidate that complained to one of the managers about someone on the interview schedule (warning him against that person). Usually if we are not into a candidate we try to shorten the interview schedule a bit so everyone doesn't have to waste their time. The candidate might not know about this though because we might only disclose a couple of people they are meeting and tell them that they meet a couple of others, but they might figure it out.