A man downed a bottle of gin before crashing his car twice on a trip to a garage to buy cigarettes. Oliver Mansell, who was on a “downward spiral” after losing his job, had sunk the litre of alcohol during a late-night session at his home near Birchington. A court heard the 40-year-old got up early and drove his Alfa Romeo to Brooksend service station in Canterbury Road to get a packet of 20. But as he entered the forecourt he collided with another vehicle, left the scene – and then crashed into a garden wall in Crispe Road, Acol, where he lives. When police arrived at the scene on July 19, Ma…