Dean believes that people on the street talk about him when he walks by. He also believes that the people on the bus are talking about him when he rides the bus to work. At work, he believes his coworkers standing at the water-cooler are talking about him. Dean's beliefs represent delusions of .

reference

Explanation:

Many people prefer to believe that people around them think more of them than they do. They tend to believe that they are more important than fact shows is normal. Ideas of Reference are variants on this action, which arise when a person assumes that it is related to them when it isn't. Extending these unrealistic ideas, the delusions of reference may lead patients to alter their actions dramatically because of this misunderstanding. As per question, Dean tends to think that people around him talk about him which is an example of delusions of reference.

barack obama

i love this guy

an informal structure in a bureaucracy would be something like so-called "office politics". where there's a formal structure set up for the organization, but then an informal subculture as well that has a way of organizing the bureaucracy further. this can be positive because it sets up an added degree of organization, albeit informal, within the bureaucracy.