They have a TV show about this called "Dirty Jobs" on Discovery last night.
Had this guy crawling around in an SF sewer with roaches raining from above. (But finished with him doing demo on a construction site, which some find kinda fun!)
Embalmer! I would be a coroner over an embalmer any day, as it would lend some sort of scientific merit to handling the dead. The element of ersatz that is required to dress and put make-up on dead bodies is too much for me.
In the distant future, (Knock on wood) I will be cremated!