Nothing shady or sordid please.
First, any company that wants you to do transaction math in your head is run by idiots. You need a calculator to be accurate. Even accountants use calculators and they add up everything three to five times to check themselves. You can become a Lawyer (lots of time reading and writing and talking on the phone...legal cases do not tend to move very fast) You can become a sales person. You go from business to business selling things. You can take it as long or as slow as you want. You can be a Porter at a car dealership. You can be a janitor at a school or a night security guard. You will find that most other jobs will want you to constantly increase your productivity and speed over time. You can investigate running your own business and that way you can decide haw fast you want to work.
Perhaps you need to live in a slow paced small town, helping out in a shop where they don't have high expectations of their workers, odds are the income would not be great but the cost of living may be cheap i such a town. They always draw a picture of the south with their muggy summers as being laid back.
Here's a list of low stress jobs
http://www.careercast.com/jobs-rated/lea...
Garbage Collector, Congress, IRS Agent, Airport Security and coal mining.
How about a job answering phones.
Being a journalist.
receptionist/secretary
Poop scooper
