This word is special. Of the several thousand words that make up the great and mighty Russian language, there are only a few dozen that have not become worn out from habitual everyday use and give rise to a response in the soul of those who hear them. For any career officer, the word “double viper” evokes such a response unambiguously, and depending on the personal immersion in the problem designated by this concept, the strength of the response varies from a contemptuous smile to an uncontrollable attack of nausea. Initially, “two-gadyushnik” in the process of evolution came from “two-year-old”, this was the name of a person who, by sheer misunderstanding, put on a military uniform after graduating from a civilian university, for a period of two years with the rank of lieutenant, sometimes career officers call such “also lieutenants” - the first word is necessarily emphasized by voice intonation.