We utter our very first words in early childhood when we hear the people around us speaking. That is the period of our life when we begin realizing good words and bad words. We only cannot make any difference between them yet. It seems to us that all the words around us are all the same, and we can say them all to the people nearby. But that is not so. Quite a number of those words are not very good – they are spoken mainly by hooligans or convicts. Their families or the people in the surrounding environment have not taught them communicate politely. Quite often, they do not know how to behave among the other people.…