I wish my dad was a butcher so we would get good cuts of meat for dinner!
My grandfather was a butcher. He used to slaughter animals and dress their flesh for sale during the 1950's.
Did it bother him at all to be part of the slaughter?  I live near a slaughter house and sometimes the smell.. furnaces for carcases.  Ugh.
It didn't bother him. He enjoyed prepareing meand and poultry for people.