Now obviously this could be a long list, but I'd say trucker. Mainly because I do admire things truckers do. You'll make enough where you'll never be in poverty, demand is high, and you're often left alone from other people. I just could never drive something that big and for so many hours. There's a few places where I can't stand driving a sedan, let alone one of those things. My maternal grandfather was a trucker, but I don't think I got those genes in me.
What career would you turn down?