Dude, once you get into the real world, and out of the residency bubble, you'll see that, often, especially in the 90% of American hospitals that are community hospitals, where there are no residents, overnight, the emergency physician is the only doctor in the hospital (like I am right now). When I was a resident, we went to all first floor and lower codes, including in radiology. The IM guys were second floor and higher. Our relationships with IM sounded MUCH more collegial than all of the burning going on in here. In fact, just as a point, my program director was asked by the IM program director to stop working patients up so completely, because that was leaving his residents with nothing to do but chase labs and write notes. All the fun was gone, because we were taking it. Hell, I got a ceruloplasmin level (resulted) on a Sunday night!