Boy Engineer, I am glad to hear that! So you do not wake up shouting that roof's unsafe!
Nor do I!
Seriously though, I have met miners who just refused to go underground after some either minor accident/event, which so shook them that they simply did not have the bottle to do it again
It is a bit like shell shock, I guess, it simply is a mental thing, and given all of this makes me very unsure of its character building.
Although I am certain that their leaders think it does.