Here's a good example. We went to service call. (retail store in a mall) The manager (22-28YO female) showed me the problem. She immediately asked if the guy that was here last week was one of our guys, I said "no, why?" She said I don't think he knew what he was doing!! He had on a concert T-shirt with cut sleeves, long hair, a lot of tat's and a lot of face jewelery!! He fixed that emergency light and it still doesn't work. I checked and there was no battery, I'm guessing that he didn't have a battery on his vehicle and was maybe going to return. But...one call from that manager to her home office and he was history. So yes, appearance does matter. I replaced the battery, all was fine. They have been a regular customer for over 2 years now.