yes, a long term volunteer firefighter and EMT here.
I know how the career firefighters don't accept volunteers as REAL firemen, but imagine working in the neighborhoods that your co workers and acquaintances live in, seeing friends of your children and their parents in the situations that firefighters see, driving the same roads and fishing on the same rivers and walking on the same park trails as the victims you have treated, doing the same things they were doing when tragedy struck. Working in another town or county is a luxury we don't get.
I have memories that creep in whenever I drive anywhere. there isn't a road leading away from my house that I haven't closed and landed a life flight helicopter on, or sat and waited for the coroner on. All of the boat ramps have body bags on them, the corners and dips and bad intersections- everything and everywhere.
Spending time reliving the scenes is like making extra payments on a debt. It happened, I was effected by it, other people were effected by it, we did our jobs, we worked on recovery and we are done now. I try to only give what I already have, but you must know how hard that can be to actually do or you wouldn't be asking the question you did.