Anything that involves continuous interaction with human beings, continuous noise, or is meaningless to me.
Gay porn star. I don’t want a penis in either opening.
I saw a TV show about a morgue. In the morgue, they had a guy who received the bodies that had been out on the street and decomposed a lot. He took the hands off the dead bodies and rehydrated them so prints could be pulled off.
Dead body re-hydrator immediately became a job I would never want to have.
Really everything in the morgue, though.
I do not want any job speaking on the phone or dealing in person with customers.
I do not want any job the requires standing on my feet.
I do not want any job in food service EXCEPT pastry chef.
I do not want any job cleaning anything EXCEPT I wouldn’t mind being the housekeeper for a family.
It goes without saying no rubbish collection, sewer or septic cleaners, no sick people.
After considerable thought it has occurred to me there are SO many jobs I would not want I can not list them all.
Someone should start a “What job would you like” thread.
Any job that requires me to be inside in good weather or outside in bad weather.
I don’t mind repetitive jobs so much, as long as I can keep working. I used to work for temporary agencies and so many of the jobs I went out on were of the hurry-up-and-wait variety. Twenty or thirty minutes of being busy and then nearly as much time sitting on our thumbs, waiting for the next project to be set up or for some machine to get fixed, or simply because our supervisor was unorganized and we had to wait for him or her to get their butt in gear. I’d sometimes sweep floors two or more times a day if that was all I could find to do during the down times, just to keep busy.
Customer service jobs. The older I get, the harder I find it is to be around many people. Having them in my face all day would bring out my anxiety and depression in very short order. I’d rather be inseminating critters because animals are cool!
I think there is one here somewhere.
Roofing. I used to work cleaning up on the ground for the roofers and that was bad enough. I want no job where my shoes could melt to what I’m standing on. My ex was a very strong man but roofing was more than even he could bear.
Snake Charmer.
I wouldn’t want any job requiring me to deal directly with customers - not retail, not food service, not sales, not any position where I could be fired for not sucking up to some whack-job customer. I don’t mind people, but I don’t like the “customer is always right” mentality, especially when the customer is being an ass.
Fortunately, I’ve never been in such a position. I’d have to be on the verge of living in a cardboard box before working retail or as a server in a restaurant. And I’m *so *glad there are others willing to do those jobs!
Aw come on…don’t leave us hanging.
With a story like that, you just gotta tell us how it ended. 
Anything in food service. In fact, anything servile pleasing a picky public.
Also, cleaning. Anything.
Anything involving having to kill animals: shelter, dog catcher, trauma vet, slaughterhouse, and cremation jobs.
Sex worker of any stripe (not that anyone is recruiting me).
Any position in which I’m micro-managed.
Hair stylist: can’t do the standing and touching people’s hair (major ick factor).
Being famous: don’t want public scrutiny, stalkers, and so on.
Anything that requires touching food, especially ketchup, mustard, and mayo.
Anything with medicine. From patient transport all the way through surgery.
Anything I have ever done before. I was a food services director for serveral years and cleaned houses for over five years. Never again.
I wouldn’t want to do a lot of these, but I’ll add “pound worker” to the list (or any job where I would have to euthanize animals, especially healthy or young animals). I wouldn’t last through the first assignment, and would probably have nightmares about it for months. I’m not even sure I could euthanize a healthy, non-vicious cat or dog (especially kittens). I’d probably get fired for trying to smuggle kittens out in my backpack or something.
I’m probably not alone in this, but about 98% of the jobs listed so far are things I’d have no issue with doing (beyond needing to support a family on the salary), most seem downright interesting.
For me, it’s sales. Specifically, the kind where you need to actively approach people out of the blue. I’ve been working in advertising (mainly in creative roles) for most of the last two decades, and for one three-month period my office put me on a sales team where I needed to cold-call companies and try to convince them to become our customers, all while speaking in Japanese. That was three years ago, and I’m still taking medication for what the stress did to my stomach.
Pooper scooping 
Yeah, for most of my career I’ve been around “Ark Ship B” jobs. A vast network of middle managers, consultants, project managers and analysts not doing much more than making PowerPoint decks.
I’d hate to be the guy who has to clean out the dumpster behind a liposuction or abortion clinic.
Mortician or anything that involves the dead
Sales - of anything - where you have to physically try to sell your wares, etc. or phone sales
Euthanizing animals
Butcher or stockyard worker
Hunter
Anything working with the public. I’d rather stock shelves than work the cash register.
Daycare provider
Hairstylist - I’d be stressed out worrying that I’d ruin someone’s hair
Dentist or dental hygienist - yuck
Anything involving feet - yuck. I guess that goes for butts too.
Teacher
Anything involving the arts - I’m not artistic at all
Cancer doctor/nurse - so depressing.
Anything that involves sewers, outhouses, poop, etc.