A drunken ticket dodger threatened to snap a train inspector’s neck after being asked for proof he paid for the journey. Dean Duke was on board a Southeastern train which departed from Folkestone when Paul Goodburn asked to see a valid ticket. When Duke could not provide one Mr Goodburn asked for his name and address to issue a fixed penalty notice. But although the 30-year-old initially complied, he suddenly became enraged and threatened the staff member. Duke called him a snitch and launched a homophobic slur, then threatened to break his neck while shouting and swearing in front of passenge…