I thought you meant an actual different language. We have that here though, to work on the mine you need to learn Fanagalo which is a mixture of languages. https://en.wikipedia.org/wiki/Fanagalo

At least carl seems to be keeping his head down and just working, in time a person learns how to act around people like that and say the right things to get the right responses it is all just social engineering , alongside actual engineering :)

Don't they drill those bolts in to add stress but also if there is a collapse that a lot of the stone clings to the bolts and don't come down in chunks?