Too many honest, hard-working people save, borrow and mortgage everything they have in order to build a business and then take a hit because of a conscious or unconsciously rude or insensitive employee. I know of a new restaurant owner who received a great rating on the quality of their food but a poor rating on service when a rude waiter offended the food editor of the local paper. One conscious or unconscious act by a negative employee can offset thousands of dollars in advertising and public relations. Most hiring decisions are made too quickly and under less than ideal conditions. Most firing decisions are based on an employee's unacceptable attitude, behavior or inability to get along with others.
Most interviewees are better prepared for the interview than the interviewer.
Some of the best, award-winning sales presentations are given by applicant's during the job interview. Interviewing some applicants is somewhat similar to interviewing teenage boys who want you to trust them with your daughters on a date. A person's interviewing behavior and their every-day behavior isn't always the same. Most managers are not trained well enough in recruiting, interviewing and hiring skills. Hiring or promoting the wrong person can be a miserable and costly experience for employee and organization.