Bad hair days come and go, but the experience of receiving a bad haircut lives forever. The shock of looking in the mirror and seeing something so far beyond what you asked for is seared in the memories of countless disgruntled customers. That being said, with this story, we're going to shift the focus from the customer to the barber. Everyone makes mistakes on the job, and sometimes, forgiveness is the best you can ask for after you mess up on the job. For these hairdressers, the experiences o…