A gambler who robbed a pharmacy of around £100 after losing more than 10 times that amount has been branded “idiotic” by a judge. Having “drowned his sorrows” at losing “more than he could afford”, John Walker targeted Cairns Chemist in Dover on his way to meeting his sister for lunch. Canterbury Crown Court heard the 39-year-old walked to the counter, ordering the fearful cashier to “open the f****** register” and then dipping into the till to take a handful of notes. As he then headed back towards the store’s entrance, pharmacist David Maloney and a number of customers bravely stepped in to …