No matter how great an applicant looks on paper or how smooth they appear during the job interview, many are experts at fooling the most experienced recruiter. Difficult personality characteristics, low skill levels and even issues with integrity may not surface until you have made that costly hiring decision. You are then left to deal with the emotional strain and potential legal problems associated with having to terminate a bad hire, not to mention all the hard costs associated with having to recruit again, time spent on interviews, re-training and loss of productivity.