As gangster <a href="https://en.wikipedia.org/wiki/Machine_Gun_Kelly_(gangster)" id="mwiQ" rel="mw:WikiLink" title="Machine Gun Kelly (gangster)">Machine Gun Kelly</a> surrenders to the FBI, he shouts out, "Don't shoot, <a class="mw-redirect" href="https://en.wikipedia.org/wiki/G-Man_(slang)" id="mwig" rel="mw:WikiLink" title="G-Man (slang)">G-Men</a>!", which becomes a nickname for FBI agents.