A would-be arsonist who tried to set fire to a police station by pouring accelerant over a front counter and throwing a lit rag later admitted he had been having “an off day”. Edward Midgley had gone to Medway police station in Gillingham shortly before 5pm on November 15 last year armed with a jar filled with flammable fluid. Having poured the liquid out, he then ignited a piece of material with a cigarette lighter and “calmly” warned the startled staff “you guys better get out as it’s going up”. Maidstone Crown Court heard the 35-year-old then placed his arms through an opening in the screen…