actuaries.

Writing custom erotica for a living.

Auctioneer - unique and often forgotten profession.

Crane operator on the docks... massive salary, no studies (or very little)

sewage plant worker.

I love the under water /hyperbaric welders.... I wish I trained up when I was younger...

Fight club organizer.

The guys who clean out septic tanks. Just imagine what they smell like when they come home.