Re: High self opinion?
A friend of mine was a gold miner in the deep outback. Hundreds of miles from even the closest town, as due to security all the services were provided inside the mining camp. I guess they're less worried about the miners taking iron ore home...
He did a few years of 8 hours underground, 8 hours in the pub, 8 hours asleep. With trips out every couple of months.
Does not sound fun to me, even though well enough paid that he could come back to the UK and buy a large chunk of a house with all the money he hadn't spent.