Stress
Somewhere between being an independently wealthy beach bum and a hostage negotiator lies the stress levels of all other careers. Farriers generally have low career-related stress. The vast majority work for themselves and make their own schedule and dress code.
Generally speaking, farriers get to spend all day helping something they love—horses; nothing too stressful about that. It's kind of like asking us at Shmoop to help you guys. Not that you look like horses or anything...
Mostly, farriers stress over a horse whose feet have some unusual problem, or about a horse who is skittish, but that's really about it. Oh, and sometimes you might get kicked.