I worked in a variety of slaughterhouse/livestock situations.I won't say who I worked for but I worked in many locations and venues.I have to say Poulty Slaughter may be stinky,wet and hot ,it is very mechanized and after a while I just found it boring(even though I saw about 3000 birds fly by me on a conveyor an hour...dead and eviscerated.Beef slaughter was a slower process and although I once was about 10 feet from a guy ,who upon sticking his knife in a carcass ,hit an abscess and was covered head to toe a la Ghostbuster Slime .
I could probably put most of you off meat ,or your lunch ,so let me just say the 2 things that did bother me were Lamb Slaughter(Mallet to the head ,in front of shivering frightened other lambs) ,and Veal Cattle ,especially killed in the Kosher style.Did this for 15 years ,then switched careers.....how's that D Fens?