I personally worked in a department that was very negative towards work and co-workers. Many staff members were very disrespectful to each other and sometimes even patients. I was only there for a few months and in that time period I saw 3 co-workers cry due to the disrespect. Some of these people were "talked to," but the disrespect and negative attitudes continued. Many co-workers had to skip lunch breaks due to how busy their schedule was. Policies were also confusing because they seemed to change every other day leading to a lot of work errors.
On the other hand, I've heard of other departments being the complete opposite. I know of other departments that were very tight-knit, positive, and enjoyable.