<b><b>In 1973 John Theakston was planning to work in his family's brewing business - but he got distracted and ended up running Higgs and Hill. He is now enjoying life at the helm of housebuilder Swan Hill. Ben Roskrow talks to him about new niches, potential takeovers and, of course, beer </b></b><br><b><b></b> Swan Hill chief executive John Theakston is not the sort of man who gets ruffled over a bit of press speculation about hostile takeovers of his company. In fact he doesn't come across as the sort of man to get ruffled by anything much. </b><br><b>Recent large share trading in Swan Hill has fuelled speculation that someone is moving into a position to buy the company, a move that would fit in well with the structural rationalisation underway in the industry. In recent weeks there have been two big movements of Swan Hill shares. But Theakston says the first was between institutions, with Shroders buying 3 million shares to maintain its holding of around 20%, while the second was Linden selling its holding to a new institutional investor.</b><br><b>He is adamant that the share movements do not signal the first moves of a potential predator, despite the fact that analyst …