After having done time in retail, marketing, corporate, etc. I believe that trading is the only career where you don't have to deal with people or convince them to sell your product. All your trades are executed electronically. You put your bid or offer out there or take someone else's, but you're not out there trying to convince them to give you money. The only time you might have to deal with people is getting started or with tech support, but that's not the day-to-day business, that's the exception. You have no boss or employees to deal with. Can anyone else think of another career like this? How about direct marketing? Well, you have to write ads to convince people to give you their money. How about running a website? You have to either convince advertisers to buy your ads, or convince people to subscribe to your service. Farming? Sure, for some crops it's just an auction market. But, can you do all the work yourself or do you need employees or contract labor to depend on. Inventor? Gotta convince someone to buy your product. Anyone know of any?