Donald Gough, 77, passed away four weeks after he was 'erroneously' jabbed with the substance at the end of a surgery at the University Hospital of Wales in Cardiff.
Antony Whelton, known as Tony, purchased an apartment for £185,950 in 2008 that ultimately proved impossible to sell - with other flats now being listed for as little as £7,500.
Rod Savage likened the agonising ordeal to 'being hit by a car with antlers on the front', after the rogue animal suddenly charged at him in Tatton Park, Cheshire.