I know what you mean.I work a very dangerous job myself,one that on any given day I could possibly not come home from but it is some of my co workers who cause me the most grief.
I imagine you don't even hate them they are just kinda inconsiderate for whatever reason. Most of the people I work with I could easily engage outside the office. Its the whole office structure and removal of a clear management structure kinda casts everything in a weird light.