A near and very dear friend was assigned to Graves Registration while in Korea. I can not imagine a worse job.
Even a PLO as Will Stockdale was would be preferable.
A friend of mine served in Korea during the Vietnam War and when he rotated back to the States, he was assigned to a Guard unit in Virginia, and his duty was to accompany Chaplains when they went to notify families of their KIA and or MIA sons and daughters. I would not have been able to handle that duty.
When the Korean War broke out, he was recalled to active duty and was told that he was being assigned to Graves Registration, based on his prior experience. His reply- "No way in hell will I do that again". The Army's reply- " Well, then we'll send you to the stockade". His reply- "Fine by me..." . He was assigned to the Infantry instead, which was what he was trained for originally anyway. He went on to serve in combat in Korea for 13 months and got to meet the Chinese up close and personal.
I am retired from the NJ National Guard, where career advancement and promotions were few and far between for the enlisted. My unit received a slot for Graves Registration which required six weeks of MOS school, which would not have been a problem. The slot was two grades above me, which would have been sweet but, I declined due to the nature of the position, even though this was after the first Gulf War and before Operation Enduring Freedom.