Blank stare of people

Have you ever encounter a person or people who have a blank stare on their faces. I am not talking about the kind that you see in creepy people or in the movies but the people who are doing their job but don’t feel like doing it. The other day I was going to my office and there are two stairs to go and apparently one of the stairs was open but at the end was closed and some of the people (including me) was going to that way but were finding out at the end that access was closed and we had to come through the other access and this guard which was employed by the management of the building was just standing there even though he knew that the access on the other side was closed. He had a blank stare that he did not really care if he was there to help or just kill his eight hours or work. My point is that if you don’t like your job or don’t want to guide the people in your capacity as an employee then why do you have that charade of being working and just quit and find something which you like. And it is not just that person but I have seen many people who are just there to stand and not help out their customers, no wonder that the companies are cutting jobs when they don’t need these kind of attitudinal employees who are burden on their company's payroll. At least I admire one thing that they are not hypocrites and they show it exactly how they feel about their jobs and not pretend that they like it.