I find interpersonal interaction very difficult....
I have, in essence, 3 part time jobs. I'm either utterly self employed or a subcontractor for all.
1. REO contractor- basically I maintain and repair vacant & foreclosed homes for banks, and do lawncare and snow removal.
2. I dig bloodworms commercially, and baitfish commercially.
3. I haul logs on the winter roads from Northern Maine to Canada, and do some other work in the woods.
All 3 have advantages and disadvantages, but I do them a different times of year which allows me variety. Don't have much interaction with other people, and I can take my dog along for all of them. If he had his way, we'd just run the log truck all the time, but such is life.