Ethnographic Essay Topic

The group I am going to research for my ethnographic essay is firefighters/paramedics, specifically Garland Firemen at a particular station (I think its number 6). I decided on this topic because I know someone in the Garland Fire Department and I have visited before and it seems like an interesting group to observe and learn about. I also think they will be very open to me interviewing them and will give me honest responses. It is readily accessible to me since I know one of the fireman, and they all meet at the same station when they work so I will be able to visit it. And obviously I am not a member of this subculture. This fits the qualifications because I know one of the firemen and by talking to him it is apparent that they definitely see themselves as a distinct group, not just of firemen but they also distinguish themselves by station. They all share the same goal of protecting the community and taking care of those in it. I have been to the station and met some of them already and they all act the same and have the same sense of humor, and they also use technical terms only used by people within that profession. I don't know if they have a common artifact, but I know when they all get together they talk about all the different stories and experiences they shared together.