DH works at a refinery, and every now and again he gets the "I wanna work in a mine" bug for the big money. I know a few people who have and they wish they never did. Not only are the hours horrid, they miss out on seeing their family... but when they have had enough they can't find a job that offers the same pay rate and find it hard getting used to having a small wage again. IMO it's a single mans life, but that's just MO.

But, If he wants it that bad getting his HR & MC licence would be a really good start GL!