Everybody or almost everybody knows exactly how dangerous is the miners’ everyday work. The person has to cope with anxiety but also with hazardous surroundings that is presented at each place when you go underground.
Learning foreign languages for many people is just their hobby. Being able to speak with foreign people is for them mostly an attractive experience. It is proved by the fact that learning a language of another country might help us appropriately understand the mentality of people from another culture. Therefore, we are recommended to in general not forget for example in order to learn more difficult languages, it is recommended by people with broad experience in this topic, to invest in for instance Polish lessons.