2. Leather Tanner
The job of a leather tanner is to treat and preserve animal hides to turn into leather. There are both modern and traditional methods used in this process, but to be honest both ways are pretty darn terrible. You’ll be dealing with either harsh chemicals or - even worse - decomposing goop, including brains! Ugh! This is one smelly, hot, grimy job that would no doubt leave you feeling filthy by the time the day was through.