A compulsive gambler who lost around GBP 2 million in a disastrous five-month betting spree today appealed against a ruling that threw out his claim for compensation and damages from bookmaker William Hill. Graham Calvert, 28, a greyhound trainer from Houghton-le-Spring, Tyne and Wear, had argued at the High Court in February that the company had failed in its “duty of care” towards him...